Nerve pain: what TCM looks at, and the rash that cannot wait
Physician Poh Yu Min (Joy) · 傅瑜敏医师
Nerve pain does not behave like other pain. It burns, tingles or shoots; it can make a bedsheet feel unbearable; and it often comes with numbness, which is pain's opposite and sits in the same place. This article explains what a TCM physician asks about it, where the medical diagnoses fit, and the one situation where three days decide a great deal.
How nerve pain announces itself
The character of the pain is the information. Burning or electric rather than aching. Tingling and pins and needles. Numbness — a foot that feels wrapped in cloth. Pain from a touch that should not hurt. And the map: both feet at once, spreading upward like a stocking, points one way; a single band on one side of the body points another; pain running down one leg from the back, another again. The physician will ask you to draw it, in effect, before asking anything else.
In TCM terms numbness and tingling are qi and blood failing to reach the extremities, and burning pain is heat or wind in the channels; the pattern beneath them — deficiency, damp, stasis — is what the treatment is built on. That reading sits alongside the medical one, not in place of it, because the medical one usually names a cause.
Diabetes, shingles, and the pain that stays
The commonest cause of numb, burning feet is diabetes, and the medical priorities are blood sugar control and looking after feet that can no longer feel a stone in the shoe or a blister forming. Check them daily. Any wound on a numb foot is a same-day problem, however small it looks. The physician will ask how your sugar has been running and what the doctor has prescribed, because that shapes everything else.
Shingles is a painful rash, usually a band on one side of the body, and it is the one nerve problem with a clock on it: antiviral tablets started within about three days of the rash appearing make a difference to how the illness runs. Shingles near the eye is urgent for the same reason and one more — the eye itself. When pain persists after the rash has healed, that is postherpetic neuralgia, and it is one of the things people most often bring to a TCM clinic; the consultation then is about the pain that stays.
Where a doctor's diagnosis fits
Diabetic neuropathy, shingles, a trapped nerve, sciatica from a disc, carpal tunnel, a vitamin B12 deficiency and the side effects of some medicines are medical diagnoses, and several are found with a blood test or a scan rather than a conversation. TCM does not make them and cannot rule them out. Bring results and letters; they tell the physician what has been found and what has been excluded.
Then the consultation is about the pain and numbness as you live with them: acupuncture, often on the limb and along the affected channel rather than only at the painful spot; moxibustion for cold-type numbness; herbal prescriptions reviewed against your other medicines. The physician tracks the map you drew at the start — whether it is shrinking, spreading or staying put.
Call 995 for sudden weakness or numbness on one side of the face or body, sudden trouble speaking or understanding speech, or a sudden severe headache unlike any you have had — those are stroke symptoms and minutes matter. Go to an emergency department now for numbness or weakness in the legs with loss of bladder or bowel control, or weakness that is spreading over hours. See a doctor the same day for a painful rash, especially on one side or near the eye; for any wound on a numb foot; and for numbness with weakness in a hand or foot. None of this is a reason to stop TCM treatment. It is a reason to have both, in that order.
This article is general information, not medical advice, and not a promise about what any treatment will do. What is appropriate for you is decided at consultation.