from Part VI - Misc
Published online by Cambridge University Press: 01 December 2023
Post-herpetic neuralgia (PHN) is a common, painful reaction following herpes zoster (HZ) infection. There have been one million cases of HZ per year, with 20% resulting in PHN, which is the prevalent condition that significantly reduces the quality of life in affected individuals. There is increased nociception in dermatomal region following typical HZ rash. The strongest risk factor is increasing age, and the FDA recommends all people age >50 to get vaccinated as a prevention. First-line treatments include topical capsaicin, lidocaine, and pharmacological management with TCAs and Calcium channel a2d ligands. Myriad of other treatment options are available, many with conflicting evidence.
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