Broken and swollen lips can be treated as follows, i.e., application of 3% hydrogen peroxide solution and saline alternating rinsing, electrocoagulation hemostasis and medication, para-suturing of the wound and use of antibiotics, as follows: 1, application of 3% hydrogen peroxide solution and saline alternating rinsing: when superficial contusion of the inner mucous membranes of the lips exposes bright red wounds, 3% hydrogen peroxide solution and saline alternating rinsing can be applied. 2, electrocoagulation hemostasis and medication: when a deeper wound of the lips reaches the muscular layer with more exuded blood, electrocoagulation can be carried out to prevent bacterial infection. Rinse, remove necrotic tissue, and apply iodophor solution to prevent bacterial infection.2, electrocoagulation hemostasis and drug treatment: lip wound deeper to reach the muscle layer, oozing more blood, electrocoagulation hemostasis can be carried out, tight suture wound, and oral cephalosporin antibiotics, pay attention to liquid diet, maintain oral hygiene and cleanliness.3, para-suture wound and the use of antibiotics: if the inner lip wound and the outer skin penetration The formation of penetrating injuries, the need to ligate the broken capillaries, layer by layer to close the dead space, para-suture wound, placed rubber drainage strips, and systemic application of nitroimidazole antibiotics.