Red bumps on the chest and back need to be treated according to the cause. If they are caused by folliculitis, antibiotics are needed. If it is caused by allergies, you need to take oral anti-allergy drugs. If it is caused by seborrheic dermatitis, glucocorticoids can be used. 1. Folliculitis: mainly manifested as red papules around the hair follicles, accompanied by red, swollen, hot, painful inflammatory reaction. Corresponding drugs can be selected according to the pathogen, commonly used drugs are antibiotics (such as mupirocin ointment, fusidic acid cream), antifungal drugs (such as ketoconazole cream, miconazole cream) and so on. 2. Allergy: It can also be manifested as red bumps, which can spread all over the body. The main anti-allergy treatment, oral antihistamines, such as loratadine, cetirizine and so on. 3. Seborrheic dermatitis: Seborrheic dermatitis can be manifested as eczema-like lesions in severe cases, which can spread all over the body. Commonly used drugs are topical glucocorticoid cream, such as mometasone cream. There are many causes of red bumps on the chest and back, and it is recommended that the patient go to the hospital in time to clarify the cause of the disease and treat the cause. If you need to use drugs, you need to use under the guidance of a doctor, do not self-medication.