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Richard Podell, MD, explains shingles – a herpes virus activation that may affect a significant proportion of Fibromyalgia and Chronic Fatigue Syndrome patients

  [ 1016 votes ]   [ 7 Comments ]
By Richard Podell, MD • www.ProHealth.com • August 1, 2007


Did you have chicken pox as a child? If so - and especially if you’re a Fibromyalgia or Chronic Fatigue Syndrome patient with immune vulnerabilities - you are at risk for the pain of a shingles attack. FM/CFS specialist Richard Podell, MD,* a clinical professor at New Jersey’s Robert Wood Johnson Medical School, explains:
n Acute shingles, chronic shingles pain, and heightened pain sensitivity (allodynia),
n Why it’s important to seek treatment immediately,
n The wide range of possible treatments, depending on pain severity and duration – from antivirals to nutrients that may encourage nerve repair.

Shingles and Chronic Shingles Pain – The Right Treatment Can Help

Shingles pain is a delayed complication of childhood infection with the chicken pox virus, varicella zoster, a form of herpes virus. After childhood chicken pox, varicella virus remains within nerve cells in the spinal cord in a kind of long-term hibernation. However, among about half of us the hibernating virus can wake up and become active. This is the disease we know as shingles.

Shingles pain begins when the varicella virus “wakes,” becomes infectious, and migrates from the spinal cord down through the long filament or axon of a nerve. In addition to shingles pain, we usually see a line of tender vesicles or blebs [blisters] on the skin over the path of the infected nerve.

Shingles treatments can reduce shingles pain if we start an anti herpes virus drug within the first two or three days of symptoms. Such shingles treatment medicines include FamvirR, ValtrexR and acyclovir. With or without shingles treatment, most cases of shingles heal within a few weeks or months.

However, if we don’t obtain prompt shingles treatments, some 5% to 15% of shingles victims will go on to suffer from long-lasting chronic pain. This post-shingles pain is called postherpetic neuralgia (also spelled: post herpetic neuralgia). ‘Neuralgia’ means nerve pain. Another term for postherpetic neuralgia is PHN. Postherpetic neuralgia pain can last for many months, years, or decades.

Shingles treatments within the first few days substantially reduce the chances of developing late stage PHN. Indeed, even without anti-viral medicines, prompt shingles treatment with pain medicines or nerve stabilizing tricyclic antidepressant medicine can also reduce the risk of postherpetic neuralgia. However, for reasons we don’t understand, one can still develop PHN, even when one obtains prompt, early shingles treatment. [More on treatments later. Note also that a shingles vaccine that the FDA recommends for adults age 60 and older who have an intact immune system is available in the U.S. as a means of boosting immunity to the reactivated virus. See the CDC's publication "Shingles Vaccine - What you need to know"]

PHN starts with inflammation and damage within the shingles-infected nerve. But this is not all. The effects of shingles pain and nerve damage can also “flow” backward through the infected nerve into the spinal cord itself. In this way PHN can disrupt the pain-conducting pathways within the spine, and from the spine, on into the brain. We call this nerve-damage induced pain neuropathic pain. At this late stage of postherpetic neuralgia there is no longer an active viral infection. Anti-viral treatments for PHN usually don’t help. (Although there may be rare exceptions where antivirals might help.)

n For some postherpetic neuralgia victims the pain is relatively modest – an annoying background ache, irritation, or burning.

n Others with pain suffer shooting-pain paroxysms down the affected nerve.

n A third group with PHN has an even more disturbing postherpetic neuralgia pain problem. This is called allodynia – a diffusely increased sensitivity to pain of all kinds and also to other stimuli that normally would not be painful, such as light pressure and even touch.

To understand allodynia’s increased sensitivity to pain, think of your nervous system’s pain transmission pathways as a series of radios broadcasting sound signals - from the peripheral nerve up through station stops within the spine, and finally up into the brain. Imagine that most or all these radio relays have their volume knobs turned up to “very loud.” That’s what allodynia means to our pain broadcasting system.

Increased postherpetic neuralgia pain sensitivity can be fairly local, just around the originally damaged nerve. In contrast, for others postherpetic neuralgia increased pain sensitivity can spread both up and down the spine, causing increased sensitivity to pain throughout the entire body. Fibromyalgia with diffusely sore, sensitive muscles can be one result of post herpetic neuralgia pain-causing allodynia.

Treatments for Acute Shingles and Early Postherpetic Neuralgia

If started within 72 hours, antiviral antibiotics such as FamvirR (famciclovir), ValtrexR (valcyclovir) and ZoviraxR (acyclovir) markedly shorten the duration of the initial shingles infection. Antivirals also reduce the later risk of developing post herpetic neuralgia (or PHN). However, after 72 hours the success rate drops off very rapidly. Therefore, if you suspect shingles, you should see your doctor promptly.

Suspect shingles if you develop an itching or painful rash. A Herpes rash typically has small blebs or vesicles, like tiny balloons out-pouching from the skin. Most often the shingles rash tends to form a straight line over the path of the infected nerve.

Strong pain medicine taken early, for example codeine or morphine, also reduces post herpetic neuralgia complications. Nerve stabilizing medicines such as the tricyclic antidepressants (such as ElavilR, PamelorR) also reduce the risk of developing PHN.

Neither pain medicines nor the tricyclics have anti-viral effects. That they help prevent postherpetic neuralgia suggests that severe pain causes damage to the nerve, which then feeds back into the spinal cord, causing changes there that create increased pain sensitivity. This mechanism may be similar to the neural sensitization process that is believed to cause Fibromyalgia.

High doses of cortisone-type medicines, and also electrical stimulation along the involved nerve might also reduce the risk of chronic shingles complications. However, the evidence for these treatments isn’t conclusive.

Chronic Stage Treatments for Postherpetic Neuralgia (PHN)

The pain of PHN probably reflects damage at multiple points along the damaged nerve and in the spinal cord and perhaps also the brain. Therefore, the best treatment needs to address multiple points of vulnerability.

Optimal care also requires holistic attention to the body’s natural healing systems, creating a metabolic environment that minimizes further damage and encourages repair.

Our goal is to both relieve current symptoms while also taking steps to heal the increased sensitivity to pain that typically occurs with this illness. (No, it’s not psychological or “all in your head”.) See our discussion of this holistic approach: “Reversing Eight Vicious Cycles That Block Fibromyalgia and Chronic Fatigue Syndrome Healing”.

Topical Pain Relief Medicines for PHN

Many (but not all) persons with PHN improve by using topical medicines applied to skin over the path of the nerve that was damaged by the acute bout with shingles. These topical medicines include:

n Capsaicin cream (e.g., one brand name is ZostrixR). Capsaicin derives from jalapeno pepper. Applied four or five times daily over several weeks, capsaicin gradually depletes the damaged nerve of an inflammatory substance called substance P. Reducing substance P gradually reduces pain. However, capsaicin, during its first days of use, can itself irritate and increase pain. Obviously, avoid getting capsaicin anywhere near the eye.

n Geranium oil may have local anesthetic-like effects, reducing nerve pain within an hour, and lasting for 12 hours. One useful technique may be to first calm the nerve with Geranium or Lidocaine (see below), and then add on Capsaicin....

n Lidocaine (xylocaine) patch, an effective local anesthetic, can reduce both pain and allodynia in a large proportion of PHN patients. One can apply up to four large patches around the affected nerve. But one usually may not keep the patches on for longer than 12 hours out of 24.

n Ketamine ointment is an anesthetic that also blocks an additional stop along the pain amplification pathways. This is called the NMDA receptor. Ketamine (which in oral form can be a substance of abuse) is generally safe to use topically. With a physician’s prescription, a compounding pharmacist can make it at various strengths.

n NeurontinR, aspirin-like medicines, tricyclic anti-depressants and other medicines that we usually use orally are sometimes as or even more effective applied topically over the nerve. With a physician’s prescription a compounding pharmacist can make up many useful combinations of topical medicines.

Note: Specialized compounding pharmacists can make up many topical and oral medicines that are not carried by “chain” pharmacies. Most fill orders by mail, if you are not located near them. The International Academy of Compounding Pharmacists can help you identify nearby compounding pharmacists.

Natural Oral Treatments for PHN

None of the following natural products has had double-blind studies specifically for use with PHN. However, most have been used with some success for various kinds of nerve pain-related problems. For example: diabetic neuropathy, migraine headache or Fibromyalgia.

These natural treatments typically take weeks to a month to work. They may have their effects by improving nerve healing overall. There is no way to tell in advance which ones will be tolerated or effective for whom. And since we are doing multiple treatments at the same time, even with [one] patient we might not be sure which are working. However, as a group they are very safe, so they are often worth a try.

n Magnesium – is known to block the NMDA receptor pain amplification system. Magnesium also acts to improve multiple biochemical metabolic pathways.

n Carnitine and acetyl carnitine – may improving mitochondrial energy metabolism. Note: Carnitine is also available as an FDA approved drug, brand name Carnitor.

n Anti-oxidant vitamins and minerals – may reduce oxidative stress damage to nerves, e.g. vitamin E, vitamin C, selenium, zinc, N-acetyl cysteine (which helps make glutathione)

n Alpha lipoic acid – an important anti-oxidant, has substantial evidence in short term studies for improving diabetes-caused nerve damage (diabetic neuropathy).

n Evening primrose oil – an important natural oil, has one excellent study showing improvement in diabetic neuropathy. Sadly, since that study was published in 1993, no one has bothered to repeat it. You’d like to see a replication or two before accepting a proof as true. But, the best evidence we have right now is that primrose oil is probably very good for diabetic neuropathy, so it’s probably worth trying for other nerve damage syndromes also.

n Omega-3 essential fatty acid sources – including fish oil, algae, and flaxseed oil, are critical for making and repairing nerve cells within the brain, spinal cord and peripheral nerves.

n B vitamins – including thiamine, folic acid, vitamin B12, and vitamin B6, are essential for nerve health.

n The amino acid lysine – may help suppress herpes virus infections. However, there’s no firm information about whether it helps healing once PHN is established.

Oral Medicines for PHN

A surprisingly large number of different classes of medicines each seems to help a fair proportion of persons with nerve pain and allodynia (increased sensitivity to pain). However, none works for everyone and difficulty with side effects is also quite common. Note: Many persons with PHN are not only more sensitive to pain, but are often also more sensitive to the side effects of medicines. Fortunately, for the most part, these are not dangerous drugs. So it often makes sense to go through the list on a “trial and error” basis until you find one that’s good for you. However, it’s also often wise to start with a dose that’s lower than the dose that other people usually start at.

Each of the following medicines seems to help some persons with nerve related pain syndromes, although only a few have been systematically studied for postherpetic neuralgia:

n Tricyclic antidepressant medicines. We use these for PHN at much lower does than we normally use for depression. Tricyclics can help PHN, whether or not you are depressed. For example: ElavilR (amitryptiline), SinequanR (doxepin), PamelorR (nortriptyline). Also related to the tricyclics: FlexerilR (cyclobenzaprine) Caution: The tricylics can sometimes increase vulnerability to heart rhythm abnormalities. An EKG to check the heart’s “QT interval” should be considered especially if you use higher doses or have a history of heart rhythm abnormalities or other heart problems.

n Nerve stabilizing/anti-seizures medicines. Many medicines that we currently use to treat epileptic seizures also have value for a some persons with nerve-related pain syndromes.

NeurontinR (gabapentin) has good data showing benefit specifically for PHN. GabitrilR (tiagabine) is similar to Neurontin. Pregabalin [brand name LyricaR, is another drug prescribed for postherpetic neuralgia that recently gained FDA approval for prescription to treat Fibromyalgia.]

TrileptalR (oxcarbazepine) is useful for trigeminal neuralgia nerve pain, but has not been tested specifically for PHN. Trileptal is a safer version of TegretolR (carbamazepine), a long-established medicine used for nerve-related pain. LamictalR (lamotrigine) and TopamaxR (topiramate) are additional nerve stabilizing/anti-seizures medicines that might potentially be helpful.

n Muscle relaxant/anti-muscle spasm medicines. ZanaflexR (tizanidine), an alpha adrenergic blocking agent, and BaclofenR, a GABA receptor stimulating medicine, are both used for muscle spasm in multiple sclerosis. Both are sometimes useful for nerve-related pain.

The benzodiazepine tranquilizers such as ValiumR, KlonopinR, AtivanR, and XanexR have muscle relaxing effects. In some persons this helps reduce pain. Caution: benziodiazepines are potentially habit-forming if used frequently.

n Narcotic-related pain medicines. If pain is too severe for aspirin/advil type anti-inflammatory agents or acetaminophen (TylenolR) often UltramR (tramadol) is a relatively good and relatively non-addictive pain medicine choice.

n Strong narcotic medicines can also be considered. Attitudes are changing toward a more positive view of these opium-related pain medicines. Recent research suggests that persons who have no personal or family history of drug or alcohol abuse are not likely to abuse prescription narcotic drugs. Of course, for some, narcotics do pose a risk of drug abuse. The choice of whether to use narcotic pain medicines has to be individualized for each patient.

Many different narcotic pain medicines are available including codeine, hydrocodeine, and morphine. All are constipating and may be sedating. While narcotic pain medicines can be taken intermittently, for those who require continuous treatment pain specialists prefer combining longer acting agents such as the 3 day DuragesicR (fentanyl) patch, with occasional “break-through” use of shorter acting agents such as PercocetR or codeine.

Recently, pain specialists have taken a second look at Methadone, because of several advantages. Methadone is inexpensive compared to the others, and does not cause a euphoric “high” as other narcotic pain medicines might. Methadone, may also work at pain receptor sites in addition to those of other narcotic medicines, such as the NMDA receptor. All narcotic pain medicines can cause addiction, sedation, prostate problems and constipation.

Other Medicine Approaches for PHN include:

n ZofranR, usually used for nausea – for some persons also helps nerve-related pain. However, Zofran can cause major problems with constipation.

n NamendaR (memantine) - was recently approved by the FDA for treating moderate and advanced Alzheimer’s disease. However, Namenda is also is the safest and most potent medicine we have that acts to calm down the NMDA class of pain receptors in the spine and brain. It has not yet be tested for PHN, Fibromyalgia, or other pain syndromes. However, in theory, it is likely to be helpful for some persons with these conditions.

Other Non-Medicine Potential Approaches for PHN

n Anesthesiologist pain specialists claim some success injecting anesthetics or corticosteroids into areas in or near where the affected PHN nerve enters the spine.

n Acupuncture may be helpful for some, but certainly not for all.

n A few individuals benefit by cutting the tiny nerve branches under the skin that connect to the damaged PHN nerve. A few individuals have been reported to benefit by cutting out that area of skin entirely.

n Electrical stimulation techniques can be helpful. A portable TENS (transcutaneal electrical stimulation unit) can reduce chronic pain.

n We have been doing research with a low dose electrical technique called frequency specific stimulation. This technique for healing nerves and nerve pains was developed by Carolyn McMakin, DC, a Portland Oregon pain specialist. [See for example “Relief of Fibromyalgia Through Microcurrent Therapy” and “Interview with Dr. Carolyn McMakin, pioneer of unique Fibromyalgia (FM) treatment”]

_____
* This information is reproduced with kind permission from the website of Richard Podell, MD. Dr. Podell is a clinical professor at New Jersey's Robert Wood Johnson Medical School. He has special interests in Chronic Fatigue Syndrome/Fibromyalgia, stress related disorders, and clinical nutrition. Dr. Podell has offices in Springfield and Somerset New Jersey. For more information please see http://www.DrPodell.org.

Note: This information has not been evaluated by the FDA. It is generic and is not intended to diagnose, treat, cure, or prevent any illness, condition or disease. It is very important that you make no change in your healthcare plan or regimen without researching and discussing it in collaboration with your professional healthcare team.



Please Discuss This Article:   Post a Comment 

Dr. Podell on Shingles
Posted by: seascape194
Jul 25, 2007
I was very interested in this article as I recently (8 weeks ago) had shingles, much to my surprise. I am 48 and thought shingles mainly attacked people in their 70's+. I found the article very informative and well researched. There is a great deal of beneficial advice. I have also contacted Dr. Podell's office to see if he has any further comments as I have had herpes for 24 years and upon falling ill with ME and then Fibromyalgia, it reactivated as if a new infection. Has anyone else had this experience? Seascape
Reply Reply

 
Shingles
Posted by: cruthirds
Jul 25, 2007
Hi,

I am 40 and have Fibro and ME-CFS and just got done with two rounds of shingles in the past 3 weeks. Unfortunately, with the lowered immunity caused by these illnesses, and so many people who have had chicken pox when they were younger, shingles can trigger at any time, especially if stress gets to high.

As they can come back and become recurrent, I'm doing what I can with supplements and taking care of myself to get my immunity stronger again. The shingles were a new, unpleasant addition to the Fibro/ME-CFS and a very painful addition at that.

I hope you're feeling better and also find some help with this!

Take Care!

 


shingles vaccine
Posted by: grammie
Aug 1, 2007
the shingles vaccine was mentioned in the article. My question is, is the vaccine recommended for people who are not in an active stae of CFIDS? I certainly do not want a relapse or to get shingles. thanks for any help.
Reply Reply

Richard Podell, MD explains shingles
Posted by: buttons34
Aug 3, 2007
I found Dr. Podell's article interesting as it explained things that have already happened to me. I've been told that I had the chicken pox when my three siblings got it, just four months after my birth. I was also informed that I only had a handful of spots. I thought it funny that one person mentioned that she thought only people 70 or more years old got shingles because I had it my senior year of high school. I have attributed many of my symptoms to an automobile accident I had at age 18 (I was thrown from the car), but perhaps it's been a combination of both. I definately have allodynia and I suffer from trigeminal neuralgia as well. I've gone downhill every year since it all began so long ago. I'm now 51 and quite a mess. Have you been able to connect mono in any way to this whole picture? I had that my junior year of high school and certain patterns seem to have begun with that illness. I also remember my grandmother saying she never felt the same after she had mono as a teen. Right now, I'm looking at COPD and possible heart issues. It's odd how when you mention those to someone, they sit up and take notice, but I've had many doubters over the years for the FM, CF and CMPS. Last year, my ex husband passed away after just a few months of being diagnosed with Cancer. I notice that if you are dying doctors have no problem giving you any pain meds you want, but if you are apt to LIVE with long-term pain, it's a very different story. I've finally been able to get some half decent relief after a few decades of being denied. Even now though, it works for some pains and not for others. Thank you for your interest in our illness. Your info makes sense to me and as I said already it offers a reasonable explanation for some of what I've already experienced. Thanks again. Anne
Reply Reply

 
Allodynia and being a mess!
Posted by: angiepangie39
Apr 11, 2010
Hi Anne,

I just wanted to comment to you that you are not alone. I have type one diabetes and Fibromyalgia, neuropathy and trigeminal neuralgia and lots more! I too am a mess. I am totally bedridden that is if I could actually lay down but my skin hurts too bad to touch the bed. I find I sit hunched over on the edge of the bed almost all day. Nothing brings relief any more. Methadone takes the edge off but no real pain relief. I have tried everything under the moon and can not get help. I am 41 and my grown children (21 and 23) are without a mother and the burden of watching me moan and shrivel up to nothing. I was moved to see that you are so much like me. What do you do to cope? I am losing hope and a will to live. The only thing I have not tried was a fibromyalgia and fatigue center? A scam perhaps and expensive too but what do I have to lose it is going to be my life I lose if I can not get some relief. I can hardly take a breathe from the pain any more.

thanks Angie

 

 
chronic pain
Posted by: SueK786
Feb 27, 2012
One of the possible treatments mentioned is intradermal injections of morphine based or corticosteroids. I had these shots (they came in a series of 4 spaced several weeks apart) 5 years ago and had AMAZING results. It cured the pain. My hands were on fire, my back and neck hurt so much I could not lean back in the chair, horrible headaches.

4 bulging discs in the neck pressing on the nerves were to blame. Post treatment, my pain subsdided, the discs returned to normal, and although I still have Fibromyalgia and seem to have triggered a rather severe attack with the shingles, I have not had a return of the horrible debilitating pain. I went to a pain specialist to get the treatments, and he coordinated with my rheumatologist. I would not hesitate to do that if my doctors thought it would help the chronic pain.

 



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