A lot of red bumps on the back a little itchy, consider is due to insect bite dermatitis, folliculitis, allergic dermatitis and other factors.
1. Insect bite dermatitis: If the back skin is bitten by mosquitoes, the mosquitoes will inject venom in the local area, thus stimulating the local blood vessel expansion, triggering oozing, causing the symptoms of a lot of red bumps on the back a little itchy.
2. Folliculitis: If you don’t pay attention to back hygiene and cleanliness, it will lead to bacterial growth, which will stimulate the local single or multiple hair follicles, triggering an inflammatory reaction, making the back grow a lot of red bumps a little itchy symptoms.
3. Allergic dermatitis: If the patient belongs to the allergic body, the back in contact with allergic substances, such as pollen, animal dander, etc., will lead to allergic reactions, thus triggering the symptoms of a lot of red bumps on the back a little itchy.
There may be other reasons for itchy red bumps on the back, such as acne and eczema. The patient should actively go to the hospital to improve the examination, clear the cause of the disease, and then follow the doctor’s instructions to give targeted treatment.