Children with bleeding and swollen mouths are advised to seek medical attention for disinfection, medication and suturing. 1. Disinfection: The wound can be washed with running water and then disinfected with iodophor. 2. Drugs: If the wound has broken skin, you can use rehabilitation new liquid to promote wound healing. If there is redness and swelling at the same time, you need to consider that there is a possibility of infection, you can apply erythromycin ointment and other drugs under the guidance of the doctor. 3. Suture: If the wound is wide and deep, the surgeon can assess the wound disinfection treatment, trim the wound edge and suture treatment. During the treatment of children’s mouth cracked and bleeding, try to avoid eating too hot and spicy food, so as not to aggravate the condition.