In the early stage of melasma, the skin will usually show light yellowish brown or dark brown spots. In the early stage of melasma, localized skin will usually show light yellowish brown or dark brown spots or rashes, which will gradually merge to form patches with clear boundaries. Chloasma is usually found on the cheeks, nose, forehead, perioral area, etc. It is of different sizes and irregular shapes, and will deepen after sun exposure. There are usually no self-conscious symptoms. Melasma treatment includes topical topical medications such as azelaic acid, hydroquinone cream, etc., oral medications such as vitamin C, tranexamic acid, etc., and laser treatments such as Q-switched large spot low-energy laser. When patients have the above symptoms, they need to go to the regular hospital in time, and under the guidance of the physician for standardized treatment. Drugs need to be used in accordance with medical advice.