What causes redness, swelling, and itching after applying the Sanfu patch?
Disease description:
What's causing redness, swelling, and itching after recently applying the Sanfu patch?
Doctor's answer (1)
Dr. He Haochen
Redness, swelling, and itching after applying the Sanfu patch are relatively common adverse reactions. The Sanfu patch works by using traditional Chinese herbal fumigation to generate heat on the skin, thereby achieving the purpose of regulating the body. Due to the thermal effect, redness, swelling, and itching may occur, which are normal responses and usually subside within one to two hours after application. Meanwhile, during the application process, it is important to avoid excessively high temperatures to prevent over-burning or damaging the skin.
