Depending on the severity of the wound, the lip can be left to heal on its own or undergo surgical debridement and suturing to promote rapid healing. 1. Superficial cuts on the mucous membrane of the lips, i.e., when the deeper layers of the mucous membrane are not injured and the wound is small with no obvious bleeding symptoms; they can be left to heal on their own, but during the healing period, the lips must be kept clean, and anti-inflammatory ointments (e.g., erythromycin ointment, etc.) can be applied under the guidance of the doctor in order to prevent infections and promote the healing of the wounds. 2. If the lip is seriously injured, i.e. accompanied by obvious mucous membrane laceration and large amount of bleeding that cannot be stopped by simple compression; it is necessary to consult a doctor for surgical debridement and suture treatment to restore the normal form and function of the lip, and take anti-inflammatory drugs (e.g. amoxicillin, metronidazole, etc.) under the guidance of a doctor to prevent infections. It is recommended to seek medical treatment for symptomatic treatment of cracked lips to avoid delaying the condition, the use of drugs need to comply with the doctor’s instructions.