Itchy small dots on the hands may be caused by ringworm, sweaty herpes, contact dermatitis, etc. It can be treated by using antifungal drugs, glucocorticoid creams, antihistamines and so on. 1. ringworm: ringworm is caused by fungal infection, ringworm patients can appear on the hands of small blisters very itchy symptoms. It can be treated with antifungal drugs, such as bifonazole cream, terbinafine hydrochloride cream, etc. Avoid contact with eyes and other mucous membranes. 2. Sweat herpes: Sweat herpes is a special type of hand eczema, patients can appear on the hands of small blisters and itchy situation. It can be treated by using glucocorticoid cream, such as hydrocortisone butyrate cream, compound dexamethasone cream, etc. It is forbidden for those who are allergic to the drugs. 3. Contact dermatitis: contact dermatitis is caused by single or multiple exposures of the skin or mucous membranes to exogenous substances, which may cause itchy pimples on the hands. It can be treated by taking antihistamines, such as levocetirizine hydrochloride tablets and diclofenac tadalafil tablets. When the patient appears on the hands of small dots very itchy phenomenon, it is recommended to go to the hospital in time to find out the cause of the disease and follow the doctor’s prescription medication.