Causes of dermal spots include nevus of Ota, chloasma, age spots, freckles, etc. Treatments include medication, physical therapy and surgery. 1. Nevus of Ota: laser treatment and chemical peeling can be used to get rid of it. 2. Melasma: hydroquinone cream and arbutin can be used externally for treatment; for some spots that are more generalized, laser treatment and intense pulse light can also be used to get rid of them. 3. Age spots: 5-fluorouracil ointment and vitamin E can be used externally, and laser treatment, cryotherapy, electrocautery and other physical methods can also be used to get rid of them. 4. Freckles: Appropriate topical treatment with decolorizing agents, such as hydroquinone cream, arbutin cream, azelaic acid cream, trichloroacetic acid solution, etc. Physical treatments, such as laser treatment, cryotherapy, electrocautery, and other physical methods can also be adopted to get rid of them. As there are more types of spots, it is recommended that patients first go to the hospital to clarify the type of spots and follow the doctor’s instructions for treatment.