Soft TIssue Injury (STI) refers to injuries to muscles, ligaments and tendons (strains, sprains, etc.). Generally speaking, first aid for soft tissue contusions follows the RICE rule: Rest, Ice, Compression, Elevation – rest, ice, compression, and elevation, respectively. Rest – Rest is the key to any physical repair to avoid/reduce sustained stress and secondary injury to the injured area. Inadequate rest may lead to prolonged recovery time, abnormal tissue repair, and habitual inflammation (chronic inflammation), etc. 2, Ice – ice ice can be a good way to reduce the inflammatory response and the heat generated by the pain, appropriate ice can reduce the inflammation brought about by overreaction Generally recommended ice and not ice to 15 ~ 20 minutes interspersed with each other, can continue to do 24 ~ 48 hours To avoid local ischemia and frostbite, it is recommended to use a towel wrapped in ice Due to slow blood flow may lead to local nutrient deficiency and waste Drainage is too slow, too long ice may be harmful 3, Compression – compression Local compression is to reduce edema caused by inflammation A certain amount of edema is unavoidable, but too much swelling can lead to local loss of function, severe pain and reduced blood flow Use elastic bandages to avoid local ischemia The degree of elasticity should ensure comfort, but not too loose so that the local move Elevation – elevation Local elevation can increase the amount of venous blood return as well as help local waste removal Hot compresses can reduce pain by: dilating the blood vessels around the painful area to facilitate the healing process by increasing the supply of oxygen and nutrients; increasing the muscle and connective tissue around the injured area to reduce pain.