Because of a small accident, I suffered multiple soft tissue contusions, and it still hurts after two weeks of infusion treatment. Later, I saw that health-preserving bone vitality can regulate soft tissue contusion. I bought a course of treatment first, cleaned the skin according to the instructions and put it on the painful place. That night, I felt the skin was very hot, accompanied by a strange feeling like acupuncture (not uncomfortable), so I changed it every three days and persisted for a month.