Foot pain refers to pain on the back of the foot, which is initially considered to be caused by chronic strain injury, also known as cumulative injury. The soft tissues of the body, especially the muscles and fascia, are often stimulated by unnoticeable strains during daily work or life, which can eventually lead to local bruising. For the treatment of this symptom, it is recommended to use hot towels for external application, as well as drugs that activate blood circulation and resolve bruising, such as safflower oil or Yunnan Baiyao spray. Foot pain can also be caused by nerve inflammation, viral infection, fungal infection, etc. It is recommended to go to the hospital to identify the cause and treat the symptoms.