Summer lips peeling with teeth bite and eat may be chronic lipitis, photochemical lipitis and other symptoms of the disease, it is recommended that usually do a good job of daily protection, and go to the hospital for timely examination and treatment. 1. Chronic lipitis may be caused by dryness, local irritation and so on. It is usually characterized by symptoms such as flaking and cracking of the lips, which often occurs in summer and is more common in the lower lip. Usually there is no obvious discomfort, will often tear or bite off the skin flakes. 2. Photochemical labiitis may be caused by ultraviolet allergy, usually with a history of sun exposure. It is usually characterized by swelling of the lips, scabs or scales, itching and burning. It is recommended to avoid direct sunlight and to apply sunscreen, such as 5% titanium dioxide ointment. The medication should be used according to the doctor’s instructions.