Hand tanned want to quickly white back can use drug treatment, medical beauty way, usually good sunscreen, the use of skin care products and other ways. 1. the use of drugs: hands after being tanned can be applied locally hydroquinone cream, niacinamide and other drugs, can promote the excretion of local melanin, inhibit melanin production, at the same time, with oral promotion of pigmentation drugs, such as vitamin C, vitamin E, glutathione, etc., for the lightening of hyperpigmentation, have a certain effect. 2. Medical way: after the hand is tanned can go to the beauty hospital, the use of medical way, such as the use of pigmented laser, photon rejuvenation, etc., can make the local sun tanning skin in a relatively short period of time to become white. However, attention should be paid to sun protection after treatment. 3. Strict sunscreen: usually go out must be equipped with sunscreen applied in a timely manner, as well as do a good job of physical sunscreen and other measures to avoid direct irradiation of ultraviolet rays have been tanned skin, resulting in aggravation of tanning. 4. The use of skin care products: hand tanned after you can use some skin care products with whitening effect, coated in the hand skin, you can also dress with whitening ingredients hand film, hydration and moisturizing, so that the skin to absorb enough nutrients to quickly whiten back. After the hand is tanned, must pay attention to care, do not be sunburned again by ultraviolet rays, the situation is serious, it is recommended to go to the regular hospital in a timely manner for treatment.