A lot of small red dots on the chest is considered to be acne, Malassezia folliculitis, cherry angioma, etc. The main treatment is medication, and physical therapy can also be taken to remove it. 1. Acne: This disease occurs in areas with dense sebaceous glands, and can appear on the chest and back in addition to the face, often accompanied by seborrhea. Adapalene gel, benzoyl peroxide, azelaic acid and other medications can be applied locally, and minocycline, doxycycline and other medications should be taken orally when the inflammatory reaction is obvious. 2. Malassezia folliculitis: hair follicles infected with Malassezia, can lead to Malassezia folliculitis, the most common parts of the chest and back, can be applied locally ketoconazole cream, miconazole cream, the usual use of ketoconazole lotion wash, the serious need for oral itraconazole at the same time, and other antifungal drugs. 3. Cherry angioma: this is a kind of red papule or nodule of varying sizes, with no self-conscious symptom, and generally does not need treatment. If necessary, it can be removed by electrocoagulation, laser and other physical treatment. A lot of small red dots on the chest, to choose the medication for the cause of the disease, the above drugs should be used in accordance with the doctor’s instructions, can not blindly use their own medication.