Researchers have now seen in a study patients with post-shingles pain that capsaicin acts on pain-responsive pain fibers. In the study, participants were treated with the capsaicin patch showed 33 ...

Treatment options are limited for patients with postherpetic neuralgia (PHN), a chronic pain disorder caused by reactivation of the varicella zoster virus. Topical application of capsaicin ...

Grünenthal already sells a topical capsaicin product called Qutenza for post-shingles nerve pain and diabetic nerve pain affecting the feet, and recently started a phase 3 trial that aims to ...