The causes of itchy small pimples on hands include sweat herpes, contact dermatitis, scabies, etc. Different medications can be chosen according to different diseases. 1. Sweat herpes: belongs to the special type of hand eczema. It occurs on the palmoplantar and lateral margins of the fingers (toes). The skin lesions are deep in the needle tip to corn size blisters, containing clear or turbid pulp, blisters can be fused into large blisters, after drying to form collar-like flaking. Topical glucocorticoids such as mometasone furoate can be used for treatment. 2. Contact dermatitis: it is an acute or chronic inflammatory reaction that occurs in the contact area of the skin and mucous membrane due to contact with certain exogenous substances. Find the cause of the disease, quickly get out of contact with substances and oral antihistamine such as loratadine. 3. Scabies: It is an infectious skin disease caused by scabies mites parasitizing the skin. In this case, you can give 25% benzyl benzoate emulsion and other drugs to kill insects. The above drugs should be used in accordance with the doctor’s instructions, there are more reasons for small pimples on the hands is very itchy, please consult a doctor in a timely manner, to clarify the cause of the standardized treatment.