Costochondritis is usually a chronic, nonspecific inflammatory disease occurring in the rib cartilage area, also known as nonsuppurative costochondritis and costochondroplasia. The cause is unclear and is generally thought to be related to strain or trauma. Acute damage to the cartilage of the thoracic ribs caused by heavy lifting, sharp twisting, chest compression, etc., or chronic strain or viral infection caused by cold or flu, leads to edema and thickening of the cartilage surface of the thoracic ribs, resulting in aseptic inflammation. The lesions are usually found in the 2nd-5th ribs of the chest, usually the 2nd and 3rd ribs are the most common, but they can also invade the sternal stalk, medial clavicle and anterior lower ribs. The affected cartilage is felt as a dull or sharp pain in the chest, with pressure pain and an enlarged bulge. The pain increases with deep inspiration and coughing or with movement of the affected upper limb, sometimes spreading to the shoulder or back. Take oral anti-inflammatory and analgesic drugs, such as loxoprofen sodium, correct body posture, avoid trauma, avoid local compression, keep warm, avoid getting cold, avoid sleeping on your stomach, and apply fotarine cream or flurbiprofen babu cream.