Treatment of melanosis should pay attention to the following aspects: 1. Freckles, age spots and other dark skin patches, become darker or more visible when the skin is exposed to the sun. In addition to avoiding sun exposure in your daily life, you should also be careful to apply sunscreen. Melanin absorbs harmful UV energy from the sun and can darken areas that are already over-pigmented. 2. Chemical peeling, the application of chemicals to the skin that result in controlled destruction of part or the entire epidermis, can cause the top layer of skin to peel off and remove areas of melanin deposition, and this approach can also lead to new skin and deeper tissue regeneration.3. Use creams or masks rich in vitamin C for lasting protection against UV damage.4. Wash your face with apple cider vinegar, the acetic acid in which can reduce hyperpigmentation.5. Use aloe vera, the aloin in which can help the body detach from hyperpigmentation.