Cheilitis is mainly caused by local factors such as mouth breathing, bad habits, lip licking, peeling, rubbing the mouth, and exposure to wind and sun. Therefore, clinically, it is important to correct mouth breathing, avoid bad habits, stop licking and peeling the lips, stop rubbing the mouth, and use moisturizing lip balm daily. Additionally, reduce consumption of fruits like mangoes, pineapples, and oranges that might irritate the lips and cause swelling. During the treatment period for lip inflammation, do not take antibiotics without authorization to avoid aggravating the condition. Patients with cheilitis can apply erythromycin ointment locally, which is very effective in killing bacteria. In terms of diet, eat lightly, avoid spicy and irritating foods, and consume more fresh vegetables and fruits.