1. Generally, medicated plasters should be changed every 12 hours, although some special plasters require changing every 24 hours. Some homemade plasters even only need to be changed every three days. The frequency depends on the therapeutic effect and the type of plaster.
2. Medicated plasters generally promote blood circulation, remove blood stasis, warm the meridians, and relieve pain. During the application of medicated plasters, care should be taken to avoid causing local skin allergies. Some medications can cause burns to the skin. If discomfort occurs after applying a medicated plaster, remove it and disinfect the area to prevent local infection.
