Local treatment is the main focus, and antibiotics are generally not required. 1.Acute treatment: control the infection and keep the local area dry. (1) Mild treatment: remove local crusts, wash with 3% hydrogen peroxide solution and 75% ethanol at any time; use hot saline wet compresses for adults; keep the umbilicus dry. (2) Abscess treatment: When the abscess is not limited, apply golden ointment or physiotherapy around the umbilicus to limit the infection and promote the formation of abscess and outward rupture. After the abscess is formed, it should be cut and drained. (3) Systemic infection treatment: If there is more pus or complications of peritonitis and sepsis, adequate amount of broad-spectrum antibiotics such as penicillin should be given, and effective antibiotics should be selected according to the bacteriological examination results. (4) Supportive therapy: In case of complicated systemic infection, attention should be paid to replenish water and electrolytes, and fresh whole blood, plasma or albumin can be given appropriately to improve the immunity of the body. (2) Chronic phase treatment: Small granulation trauma can be cauterized with 10% silver nitrate and then coated with antibiotic ointment. Large granulation wounds can be surgically excised or electrocautery to remove granulation tissue. The umbilical fossa can be healed by keeping it clean and dry. Talcum powder should not be used on the wound with secretions to avoid stimulating the proliferation of granulation.