When a patient has angular cheilitis, there may be redness, erosion, or bleeding at the corners of the mouth. Thus, when the corners of the mouth appear red, it might be a symptom of angular cheilitis. The symptoms may appear together or individually. Therefore, it is recommended that patients should avoid licking their lips with their tongue and avoid exposure to cold winds. They can apply some erythromycin ointment or glycerin locally for treatment. Avoid eating spicy and irritating foods. If the patient has severe angular cheilitis, dietary adjustments should also be considered. Consuming fresh vegetables and fruits, and eating foods rich in vitamins can help heal angular cheilitis.