Angular cheilitis is also relatively common in clinical practice, commonly referred to as cracked corners of the mouth. This condition is generally caused by a deficiency in vitamins and trace elements in the patient's body, or due to excessive internal heat, leading to erosion at the corners of the mouth. Furthermore, the surface may also exhibit a moist, whitish appearance accompanied by pain. At this time, it is advised that patients should not frequently lick the affected area with their tongue and may apply some anti-inflammatory ointment. If the pain is severe and the damage from angular cheilitis is significant, patients can appropriately take some oral cephalosporins. However, as cephalosporins are antibiotics, it is recommended that patients use them under a doctor’s guidance and not take them indiscriminately. If a patient is allergic to penicillin, cephalosporins should not be used, so it is advised not to take them without proper guidance.