What is the duration of trichloroacetic acid (TCA) therapy for the treatment of human papillomavirus (HPV)?

Updated: Feb 20, 2020
  • Author: Peter A Gearhart, MD; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Answer

Effective treatment usually requires weekly application for 4-6 weeks. The principal side effect is pain and burning if the TCA comes in contact with the normal skin. Although TCA is caustic, it causes less local irritation and systemic toxicity than other agents in the same class; however, response is often incomplete and recurrence common. [82]


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