The appearance of white film-like substance on the lips in the morning is considered to be caused by a variety of conditions. Firstly, consider it is a physiological phenomenon, after a night’s sleep, the oral cavity, respiratory tract and the lips lose moisture, lip dryness leads to the loss of local cellular tissue in the lips, thus appearing white film-like substance, it is recommended that you can usually drink more water, eat more fresh fruits and vegetables, and use lip balm to apply when necessary. Secondly, consider the possibility of labyrinthitis, the etiology of labyrinthitis is not clear, may be related to ultraviolet radiation, diet spicy stimulation, exposure to cosmetics, topical drugs, local stimulation, such as eating mangoes as well as temperature changes, mental and emotional factors, the clinical can choose to use topical calcium phosphatase inhibitors, such as tacrolimus ointment, pimecrolimus cream, etc.. Also consider that it is caused by vitamin deficiency, it is recommended to appropriately supplement vitamins.