A broken lip usually takes 5-7 days for the swelling to go down. However, it depends on the severity of the fall. If the fall is more serious, it may take longer for the swelling to go down. There is a lot of loose connective tissue around the lip, and bleeding after a fall can cause swelling around the lip. Lip broken, within 24 hours can be localized cold compresses, more than 24 hours can be hot compresses, which is conducive to swelling. And at the same time to deal with wounds, clean and disinfected to prevent infection caused by open wounds, if the wound is relatively large, should go to a specialized hospital for debridement suture treatment, and regular medication. If necessary, anti-inflammatory drugs, such as amoxicillin, cefaclor and so on, should be taken under the guidance of the doctor.