If the nail is broken in half and still attached to the flesh, it is recommended to go to the hospital and have the doctor perform debridement of the injury, and then improve it through medication as well as daily care. 1. Cleansing treatment: Sterilize the injury area and decide whether to remove the nail depending on the condition of the injury. If removal is necessary, it can be performed after infiltration anesthesia on the side of the finger. Dress the wound after debridement. 2. Drug treatment: prevent infection after the injury by taking antibiotics such as amoxicillin and cefadroxil; for pain relief, take ibuprofen, diclofenac sodium and other treatments. Drugs should be applied under the guidance of a doctor. 2. Daily care improvement: during the treatment period, you need to change the medication regularly, disinfect the local iodine povidone, change the dressing to avoid local infection, but also to avoid local touching water. If you are applying drugs externally, you need to apply drugs to the local area every day to avoid delaying the condition. If the nail is broken in half and still attached to the flesh, the patient should go to the hospital to treat the wound.