Common spots include melasma, freckles and nevus of Ota, which are mainly treated with medication, laser and physical therapy, but the choice varies from one spot to another. 1. Chloasma: You can use decolorizers such as hydroquinone externally, or medicines containing whitening ingredients such as arbutin to reduce the production of pigment; take tranexamic acid, vitamin C and vitamin E orally, and combine with laser treatments such as Q-switching laser, picosecond laser, non-exfoliative fractional laser, radiofrequency and intense pulsed light, and so on. 2. Freckles: use sunscreen when going out, avoid sunlight, at present, the more commonly used is Q-switched ruby laser with wavelength of 694nm, IPL, emerald green gemstone laser with wavelength of 755nm. 3. Nevus of Ota: it should be actively treated, commonly used emerald green gemstone laser with wavelength of 755nm and Nd:YAG laser with wavelength of 1064nm, which can have better cosmetic treatment effect. Patients with spots on face or body should go to regular hospitals in time for clear diagnosis and active treatment under the guidance of professional doctors.