A lot of red bumps on the back may be caused by allergic dermatitis, insect bite dermatitis, folliculitis and other reasons.
1. Allergic dermatitis: Sensitive people who ingest allergenic substances such as seafood can lead to an allergic reaction in the skin, and red bumps may appear on the back.
2. Insect bite dermatitis: mostly caused by mites, mosquitoes and other insect bites, summer is the season of mosquitoes, mosquito bites, secretions can stimulate the blood vessels outside the inflammation and allergic reaction, resulting in red bumps on the back.
3. Folliculitis: Hormone level changes in puberty, eating too greasy, do not pay attention to skin cleaning and other factors, can promote sebaceous gland secretion, follicle mouth blockage, resulting in local inflammatory pimples, the back can also appear red bumps.
There are many reasons for red bumps on the back, so it is recommended that patients go to the dermatology department of the hospital to clarify the cause and follow the doctor’s instructions for treatment.