Angular cheilitis, commonly known as soreness at the corners of the mouth, generally occurs more frequently in children. These situations may be related to children often being picky eaters, having an aversion to food, and having weak immune resistance, leading to a deficiency in some vitamins and trace elements within the body.

Angular cheilitis is a very common clinical disease. When angular cheilitis occurs, it causes a very intense pain, which can affect the patient's ability to eat, preventing the wide opening of the mouth to chew food. Topically, some iodine can be applied to disinfect the area.

However, it is recommended that patients should use some anti-inflammatory ointments locally to help the healing of the area effectively. Additionally, it is important to pay attention to diet, avoiding being picky or averse to food, and to eat a variety of vegetables and fruits rich in vitamins, which can be very helpful in preventing recurrences of angular cheilitis.