How to treat cracked corners of the mouth

1. General treatment: Maintain oral hygiene and avoid licking the lesion with the tongue or picking at scabs with hands to prevent wound erosion and infection. Drink plenty of water to keep the mouth moist, increase intake of fresh fruits and vegetables (such as apples and celery), and avoid spicy or irritating foods. 2. Medication: Select appropriate medications based on the underlying cause. For bacterial infections, topical antibiotics such as erythromycin ointment or fusidic acid cream may be used. For fungal infections, antifungal agents such as clotrimazole cream or miconazole nitrate cream are recommended. For viral infections, if medication proves ineffective, angular cheiloplasty (corner-of-the-mouth excision) may be considered. 3. Nutritional supplementation: Appropriate supplementation with vitamin B2, zinc, calcium, and other trace elements can help alleviate angular cheilitis caused by nutritional deficiency. 4. Other treatments: Physical therapies such as laser therapy and microwave therapy may promote blood circulation and accelerate wound healing. Seek medical attention promptly when necessary and follow professional medical advice.