A small piece of small granular bumps on the arm may be caused by atopic dermatitis, herpes, mosquito bites and other factors, the patient should consult a doctor in a timely manner to clarify the cause of the disease.
1. Allergic dermatitis: if the patient is in contact with dust, pollen and other substances that can easily lead to allergies appeared on the arms of a small piece of small particles of bumps, should be considered to be atopic dermatitis caused by, the patient should avoid re-exposure to allergens.
2. Herpes: Herpes caused by herpes virus infection can also cause a small piece of small granular bumps on the arm, the patient will also have localized severe pain and general weakness.
3. Mosquito bites: If the patient is in the woods, grass and other grassy places, appeared on the arm a small piece of small particles of pimples and also accompanied by itching, should be considered to be caused by mosquito bites.
A small piece of small particles on the arm bumps, can go to the hospital in time, clear cause for targeted treatment.