When you have pain inside the left rib cage when you take a deep breath, the first thing you need to do is to clarify the cause and then treat it. If the pain is caused by trauma, you need to actively improve the examination to clarify the exact extent of the injury. Because of the thinness of the ribs, any slight trauma may lead to fracture. If surgery is indicated, active surgical treatment should be carried out, but in most cases, conservative treatment is possible, starting with external fixation with a multi-headed chest strap, which can effectively reduce the movement of the fracture end and alleviate pain, local use of flurbiprofen babu cream, oral anti-inflammatory and analgesic drug loxoprofen sodium, keeping warm, avoiding upper respiratory tract infections and Keep the bowels open to prevent constipation. If there is no trauma, it may be a local aseptic inflammation, to actively correct the body posture, avoid a long time a posture, avoid sleeping on your back for a long time, avoid local compression, but also do not repeatedly turn the chest, this situation can effectively reduce the local soft tissue damage, local use of flurbiprofen baboo anti-inflammatory and analgesic symptomatic treatment, if necessary, can be closed treatment.