In life, everyone will encounter sprains, such as lumbar sprain, ankle sprain, wrist sprain, encounter this situation, the first time many people do not necessarily go to the hospital, unless the pain is very strong or obviously swollen, or can not move. I encounter many patients in the emergency room often take a plaster and put it on themselves or use hot water to soak it. When the damaged blood vessels are exposed to heat or affected by the blood-activating drug components of the plaster, they will expand, and the exudation will increase, causing pain and discomfort and affecting the healing time. The correct approach, the injured part immediately stop activities, such as conditions, you can local cold compress (20 minutes each time, ice bags or ice do not directly contact the skin, spacing towels or clothing), promptly to the hospital to exclude fractures, dislocation and other serious conditions, and may get the next treatment plan.