Arm tanning can be adjusted through daily life diet, can also be used under the guidance of the doctor, the use of topical drugs, or the use of medical methods to restore. 1. Daily life diet regulation: arm tanning first must be strictly sunscreen, to avoid the skin continues to be exposed to ultraviolet radiation, resulting in increased melanin. 2. Topical medication: you can also use hydroquinone cream, or niacinamide gel and other drugs under the guidance of a doctor to apply the arm area, which will help inhibit melanin production, and will help the skin to recover. 3. Medical treatment: you can go to the regular hospital to restore the arm skin through the way of medical beauty, such as photorejuvenation treatment. If the use of drugs, be sure to strictly follow the doctor’s instructions to use, do not take medication without authorization, so as not to lead to adverse consequences, if the use of medical beauty, you need to go to a regular hospital, looking for experienced doctors to operate, the effect and safety is more guaranteed.