What is the freeze-thaw-freeze cryosurgery method for the treatment of human papillomavirus (HPV) infection?

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

The freeze-thaw-freeze method is considered more effective than a single freeze. Application is continued until up to a 5-mm margin of surrounding skin or mucosa is frozen. After the skin turns white, freezing is continued for 30 seconds, after which time the skin is allowed to thaw. If the patient can tolerate the pain, a second cycle is applied. Within 24 hours after treatment, a bulla forms over the treated area. An additional course of treatment can be applied in 1-2 weeks as necessary.


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