Postherpetic neuralgia: clinical experience with a conservative treatment.

Ninety-seven consecutive cases of postherpetic neuralgia (PHN) were retrospectively reviewed. Patients comprised 49 women and 48 men with a mean age of 71.6 years. The most common painful locations were the chest and upper back (34%), abdomen and lower back (25.2%), and face (20.2%). Burning pain was the most common type of pain (61.3%). Lancinating pain was reported by 40% and throbbing pain by 22.6%. Treatments included drugs (mainly tricyclic antidepressant, anticonvulsant, and neuroleptic drugs), transcutaneous electrical nerve stimulation (TENS), and dry needling of muscles in the affected dermatomes. Positive response to treatment occurred in 18.5% of the patients after one visit. In 9.3% of the patients, the pain still could not be controlled after 10 visits of 2-week intervals. TENS proved to be effective in patients whose skin sensation was preserved. It was concluded that in most PHN cases, pain can be effectively controlled by conservative noninvasive therapy.