There is no such thing as the fastest way to heal a child’s lip, but the wound should be cleaned and treated first, and then different treatments should be chosen according to the severity of the wound, such as physiotherapy, medication, and so on. 1. Physical therapy: If the wound is not serious after a child’s lip is broken, the wound should be sterilized first to prevent infection. If the lip is swollen, you can apply local cold compress to reduce the swelling, and then change to hot compress after 72 hours. 2. Medication: If the wound of a child’s lip is serious, it should be disinfected and then treated with debridement in a timely manner. After the wound is cleaned and sutured, tetanus injection should be given in time, and oral hygiene should be maintained to prevent the wound from being infected. When children’s lips cracked, it is recommended to go to a regular hospital for examination as soon as possible, under the guidance of professional doctors to avoid unnecessary consequences.