Which medications in the drug class Topical Analgesics are used in the treatment of Varicella-Zoster Virus (VZV)?

Updated: Feb 15, 2019
  • Author: Wayne E Anderson, DO, FAHS, FAAN; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Answer

Topical Analgesics

Topical analgesics that contain capsaicin are effective in decreasing neuropathic pain caused by postherpetic neuralgia.

Capsaicin transdermal patch (Qutenza)

Transient receptor potential vanilloid-1 (TRPV1) agonist indicated for neuropathic pain associated with postherpetic neuralgia. TRPV1 is an ion channel–receptor complex expressed on nociceptive skin nerve fibers. Topical capsaicin causes initial TRPV1 stimulation that may cause pain, followed by pain relief by reduction in TRPV1-expressing nociceptive nerve endings. Neuropathic pain may gradually recur over several months (thought to be caused by TRPV1 nerve fiber reinnervation of treated area).


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