First of all, pay attention to hygiene and warmth: after meals, wash your face and wipe your mouth in time. In cold winter and spring, after bathing and cleaning, use skin care grease, glycerin or anti-cracking oil suitable for children to keep skin moist and prevent chapped mouth. Traditional Chinese medicine therapy: removing dampness and strengthening spleen, clearing away heat and detoxifying, and using Jianpi Chushi Decoction and Modified Huanglian Jiedu Decoction. Topical application can be 10% honeysuckle decoction, water cooling and wet compress, or external application of cool ointment.