Itchy bumps on the arms may be caused by contact dermatitis, eczema, insect bite dermatitis and other reasons.
1. Contact dermatitis: when the arm comes into contact with irritating objects, such as detergents, hair dyes, paints, etc., contact dermatitis can be induced, resulting in small bumps on the arm, accompanied by obvious itching symptoms. Severe cases may appear localized blisters, when the blisters burst can be accompanied by peeling phenomenon.
2. Eczema: Climate discomfort, contact with animal hair or immune imbalance, etc., may trigger eczema, skin pimples, pimples and other symptoms, serious cases may appear small blisters, accompanied by intense itching.
3. Insect bite dermatitis: mostly caused by mites, mosquitoes and other insect bites, its saliva in the heterogeneous protein into the body, triggering an allergic reaction, the skin appears localized petechiae, pimples, blisters and other manifestations, accompanied by intense itching.
Small bumps on the arm can be seen in a variety of reasons, it is recommended that the patient to the hospital, a clear diagnosis, follow the doctor’s instructions for treatment.