There are many factors that cause angular cheilitis, so comprehensive treatment is necessary for a radical cure. Firstly, it is essential to remove local irritants that cause angular cheilitis, such as avoiding the habit of abnormally licking the lips, and removing poor dental restorations, which includes getting rid of inappropriate dentures that wear on the lips. Eat less spicy food and avoid chewing betel nuts, change some unhealthy food habits, eat more fruits and vegetables, and supplement with Vitamin B complex. It's important to maintain a balanced diet regularly and ensure to include trace elements like iron and zinc. Also, keep the lip area moisturized to prevent dry and cracked lips. Additionally, enhance your immune system and maintain a healthy and calm mood. With these comprehensive treatments, it is believed that angular cheilitis will heal quickly.