Melasma, a pigmented skin mucosal disease, is very common in the clinic, and once it occurs, patients cannot effectively get rid of it through food adjustment. Therefore, it is impossible for patients to eat more tomatoes or lemons or oranges, etc. to lighten their spots. In order to get rid of melasma, patients should go to the dermatology department or medical aesthetic department of a regular hospital. In clinical practice, patients can first consider applying topical creams for depigmentation, or applying laser cosmetic treatments, or applying oral medications, such as vitamin C, tranexamic acid, etc. Some patients think that eating more food can have the same effect as medication, which is very unrealistic. Although vitamin C can play a role in lightening spots, it often needs to be taken in large doses, while patients are able to get the same dose of vitamin C from food, but they need to eat very large amounts.