Cracked mouth can be applied topically with wet compresses, and topical antibiotic ointment can be applied if there is exudation. Cracked mouth is a manifestation of orchitis, a general term for inflammation that occurs in the corner of the mouth area. The corners of the mouth area is cracked or the corners of the mouth are eroded and crusted, also known as rotten mouth. Stomatitis can be caused by malnutrition, diabetes and anemia, and should be treated with vitamin and folic acid supplements, systemic diseases and anemia correction. You can use chlorhexidine wet compresses in the corner of the mouth area, remove crusts and then apply nail violet to keep the corner of the mouth area dry, and use antibiotic ointment to apply when there is less exudation. Cracked mouth may also be caused by bacterial, viral or fungal infections, common Candida albicans infection, or herpes virus infection caused by corns of the mouth, you can use local acyclovir ointment to apply, with bacterial infections can use gentamycin ointment, or oral norfloxacin. Fungal infections can be caused by the use of sodium bicarbonate wet compresses, followed by the use of miconazole cream or clotrimazole ointment to apply. Cracked mouth may also be caused by contact with allergens, you should minimize the use of cosmetics and try to avoid foods that cause allergies such as fish and shrimp. So a cracked mouth can use chlorhexidine or sodium bicarbonate wet compresses and then apply antibiotic ointment or clotrimazole ointment.