For dry and cracked lips that repeatedly do not heal, try giving recombinant human epidermal growth factor gel to promote the healing of the cracks. Usually, you need to pay attention to avoid local irritation, do not lick your lips and avoid eating food with irritating properties. Do not use irritating toothpaste, such as toothpaste containing fluoride, and preferably rinse your mouth instead of brushing your teeth, so that the foam of toothpaste does not stick to your lips and the cleft does not heal easily. You can give vitamins and trace elements to supplement, it is best to choose the regular hospital consultation, you can check the trace elements and vitamins, you can use the medicine under the guidance. The usual consumption of fresh vegetables and fruits, not partial food, will help the healing of the skin lesions.