Rotten corners of the mouth, also known as keratitis, the treatment of keratitis does not exist the fastest and most effective method, need to choose different methods according to the reasons not used: 1, medication, if it is caused by nutritional deficiencies of keratitis, while oral multivitamin capsules. If it is caused by bacterial infection, you can apply antibiotics, with oral vitamins. 2, pay attention to hygiene, keep the lips clean, hygiene, before applying the ointment to wash the lips, dry, do not lick the lips with the tongue, so as not to aggravate the infection. 3, pay attention to the diet, to a light diet, eat more coarse grains, eat more vegetables, fruits, diet is too fine is one of the common reasons for corns. . Drink more warm boiled water, timely replenishment of the body’s lost water, do not eat spicy, stimulating food.