The bone in the center of the chest is called the sternum, and the most common cause of sternal pain is inflammation of the periosteum of the sternum. Inflammation of the periosteum is usually due to prolonged exertion or trauma after localized cold, such as blowing fan or air conditioning after the local pain, the pain is mainly manifested as a tingling sensation, the pain may be aggravated when expanding the chest or deep breathing, and the pain can be alleviated by lying down and resting in bed. The best treatment in this case is braking, local hot compresses, hot water bags or hot towels can be used for external application. If the pain is not relieved, you can apply topical Fitalin ointment or take oral Cilostro capsules to relieve pain. There is also another case of fracture caused by sternal trauma, which is relatively rare in clinic. Once onset, the pain is more intense, usually with obvious pressure and percussion pain, and the pain is obviously aggravated when breathing, and the activity is limited, which needs to go to the hospital for further treatment.