According to the severity of the trauma, the lower lip can be left to heal on its own or be treated with surgical debridement and suturing of the wound. 1. If the wound on the lower lip is superficial and has not injured the subcutaneous tissue and bleeds less, it can be left to heal on its own; however, during the healing period, the wound must be kept clean and hygienic, and anti-inflammatory ointments (such as erythromycin ointment, levofloxacin ointment, etc.) can be applied locally according to the doctor’s instructions to prevent infections. 2. If the lower lip is cracked, resulting in a deep laceration with a lot of bleeding that cannot be stopped on its own, it is necessary to consult a doctor for surgical suture treatment, i.e., using special sutures to close the wound in the right place in order to promote its rapid healing. It is recommended to seek medical attention for symptomatic treatment of lower lip cracks to avoid delaying the condition.