Methods of removing melanin deposits after frostbite include skin care, medication, and laser therapy. 1. Skin care: patients should pay extra attention to skin care in daily life, and try to avoid stimulating cosmetics and skin care products to stimulate the skin at the melanin deposits again. Pay attention to keep warm in cold environment to avoid the reoccurrence of frostbite. 2. Medication: patients can apply hydroquinone cream, vitamin E milk and other medications to the skin at the melanin deposits under the guidance of a professional physician to improve the hyperpigmentation after frostbite. 3. Laser therapy: pigment particles can be broken under the action of laser, and then through the skin circulation metabolism and ultimately discharged from the body. Patients should note that this method should be used in regular hospitals, under standardized operation.