Brown spots on the body may be chloasma, freckles, florid chaffing rash, etc., which need to choose medication and physical therapy, etc. 1. Melasma: If exposed to ultraviolet rays for a long time or changes in the level of sex hormones in the body, it will cause melanin metabolism disorder, resulting in brown spots on the patient. Drugs such as retinoic acid cream and hydroquinone cream can be applied, which can have the effect of decoloration, and physical methods such as laser can also be chosen, which can improve the symptoms. 2. Freckles: Freckles are related to heredity and sun exposure, which cause local skin pigmentation spots, which will be more serious in summer, forming brown spots on the body. You can choose to do intense pulsed light, pulsed ruby dye laser and other physical treatments, can play a role in removing freckles. 3. Maculopapular furuncle: Maculopapular furuncle is triggered by Malassezia infection, which will invade the stratum corneum of the skin and lead to the formation of pitting rash, causing brown spots on the body. You can apply clotrimazole solution, miconazole nitrate cream and other drugs, can play the role of antifungal, so that the skin gradually recover. Brown spots on the body may also be caused by coffee spots, pigmented nevi, etc. It is recommended that patients do not blindly choose their own drugs, need to go to the hospital dermatology department, under the guidance of the doctor symptomatic treatment. The above drugs should be used in accordance with medical advice.