Small blisters on the arm arm is very itchy, may be contact dermatitis, eczema, insect bite dermatitis and other reasons, it is recommended to consult a doctor in time.
1. contact dermatitis: arm arm skin contact with external sensitizing substances caused by an allergic reaction, manifested in contact with the site of erythema, pimples, blisters, herpes, and accompanied by itching and other symptoms.
2. Eczema: Inflammatory skin reactions caused by internal and external stimuli. Acute eczema can also cause small blisters on the arm and arm is very itchy, most of them will also be accompanied by obvious oozing tendency.
3. insect bite dermatitis: local skin by mosquito bites, the skin may appear erythema, pimples and other symptoms, can also lead to arm arm blisters itchy symptoms.
Arm arm blisters itchy, there may be other reasons, it is recommended to go to the hospital in a timely manner, clear cause in the doctor’s guidance targeted treatment.