Stomatitis, also known as rotten corners of the mouth, refers to the inflammation that occurs at the union of the upper and lower lips. Treatment guidelines, etiological treatment: give vitamin B complex, local cleaning care medication, local application of antifungal drugs, and broad-spectrum antibiotics if necessary. Drug treatment: I. malnutrition keratitis, generally give vitamin B2, while oral vitamin B complex, strengthen local care, the corner of the mouth local available gentian violet coating, maintain cleanliness and hygiene, the intermaxillary distance is too short need to perform oral repair. Second, coccidiostomatitis, treatment should be in the local cleaning, after clean, with antibiotics, such as erythromycin ointment rubbing. At the same time, broad-spectrum antibiotics can be taken orally, available penicillin V potassium tablets, sulfonamides, spiramycin, etc. Third, fungal stomatitis, treatment of local cleaning and drying with mycoplasma solution, and then local application of mycoplasma, clotrimazole, miconazole, etc.. After several weeks can be cured.