Sternal pain after open heart surgery is mainly analgesic, early postoperative pain can be injected or infused with pain relieving fluids, and later oral painkillers or topical pain relieving creams can be applied. 1. Early postoperative analgesia: postoperative sternal pain after open heart surgery is mainly caused by surgical trauma, due to the need for surgical operation and cutting the sternum, it is easy to cause persistent pain in the sternum after surgery. Therefore, postoperative infusion of pain relieving fluids such as propacetamol hydrochloride injection, ketorolac tromethamine injection and so on is needed. 2. Oral painkillers: Since the sternum healing cycle, like fracture healing, has a longer healing time, there will still be intermittent pain symptoms in the later stage. Therefore, you can take oral pain medication after open-heart surgery, generally based on non-steroidal anti-inflammatory and analgesic drugs, such as celecoxib capsules, acetaminophen tablets and so on. 3. external pain cream: in addition to oral medication, you can also apply local pain cream to assist in analgesia, such as piroxicam patches, flurbiprofen ester gel paste, etc.. The medication for sternal pain after open heart surgery needs to be combined with the doctor’s opinion and taken under his guidance.