First of all, the spot on forehead should be chloasma. Melasma is a very common clinical disease of pigmented skin and mucous membrane. Forehead, cheekbones, back of the nose and chin are the locations where melasma is likely to occur. If melasma appears on the forehead, if the extent of melasma is not very large, it is recommended to apply laser or fruit acid skin resurfacing with topical ointments for depigmentation, such as hydroquinone cream, tretinoin, azelaic acid ointment, compound arbutin ointment can be applied with fruit acid skin resurfacing. These two types of methods can play a good role in eliminating melasma. Of course, patients can also consider applying creams with depigmentation effect for topical application. For example, hydroquinone cream, vitamin A acid ointment, and glucocorticoids can be applied in combination to remove melasma.