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Shingles and Post-Herpetic Pain
Shingles is reactivated chickenpox virus in a nerve, and pain can linger long after the rash. We support immune terrain, nerve repair, and a calmer, retrained pain system.
What you may be noticing
A band of burning, tingling, or stabbing pain on one side of the body, then a blistering rash in the same stripe. Weeks later, the rash has healed but the pain has not. Clothing against the skin feels unbearable. Sleep is broken. The area may itch or feel numb at the same time.
Shingles near the eye, on the tip of the nose, or with vision changes, facial weakness, hearing loss, confusion, or a widespread rash needs urgent medical care. Early antiviral treatment matters.
Why it is rarely one thing
After chickenpox, the varicella zoster virus lies dormant in sensory nerve clusters near the spine. When immune surveillance dips, it can reactivate and travel along the nerve to the skin. Age, stress, illness, and immune-suppressing medications are known triggers.
Post-herpetic neuralgia is pain lasting beyond about three months. The virus damages the nerve, and the spinal cord and brain can amplify the remaining signal. Not only a damaged nerve, but a pain system that has turned up its volume. Older age and severe acute pain are the strongest risk factors.
In my framework, the nervous system is the master regulator. A body held in chronic stress, short sleep, and survival mode diverts resources from immune surveillance and repair, and a heavy total load of infections, toxins, and inflammation leaves less immune capacity to keep a dormant virus quiet. That link between total load and reactivation is a working clinical hypothesis, while stress and immune suppression as triggers are well recognized.
This is where neuroplasticity offers real hope. Functional neurology works like physical therapy for the brain: precise sensory, motor, and autonomic inputs that help the pain system rewire and turn its volume down over time.
Patterns we look for
- Immune resilience: vitamin D, zinc, sleep, and stress load.
- Blood sugar regulation, since diabetes raises risk.
- B12 and methylation status for nerve repair.
- Medications that suppress immunity.
- Total inflammatory and infectious load.
- Central sensitization and pain amplification.
- Autonomic balance and sleep disruption.
- Mood changes, since chronic pain and low mood feed each other.
How I evaluate it
The comprehensive functional neurological exam maps sensation across the affected area, including light touch, temperature, and allodynia, and assesses autonomic responses, central sensitization, and side-to-side differences in brain function.
Functional labs may include vitamin D, zinc, B12 with methylmalonic acid, a complete blood count, fasting glucose and HbA1c, and inflammatory markers. I coordinate with your physician on antiviral treatment, pain medication, and vaccination decisions.
How we address it
- Ensure early antiviral treatment with your physician during an active outbreak, and discuss vaccination.
- Restore immune resilience: nutrients, sleep, and stress physiology.
- Lower total load on the immune system where other infections or toxins are present.
- Support nerve repair with methylation nutrients and anti-inflammatory nutrition.
- Calm central sensitization with vagal tone training and nervous system regulation.
- Retrain sensation with graded sensory rehabilitation, beginning gently with tolerated textures and temperatures.
- Coordinate topical and medical pain options with your care team.
Pain that outlasts the rash is a nervous system message. With the right inputs, it can be quieted.
Book your Comprehensive Functional Medicine Eval/Neurological Exam today to discover what the contributing root causes are that are underlying your health concerns.