Red dots on the back of the hand, may be related to eczema, contact dermatitis, allergic purpura, etc., need to be on the cause of the drug treatment, physical therapy, etc.. 1. For eczema, you can follow the doctor’s instructions to use pimecrolimus cream and other calcium-modulated neural phosphatase inhibitors or halometasone cream and other glucocorticosteroids ointment, oral antihistamines such as loratadine, oral or injectable glucocorticosteroids such as prednisone, and so on; ultraviolet radiation can help the recovery of skin lesions. 2. For contact dermatitis, you can follow the doctor’s instructions, such as external halometasone ointment or oral prednisone and other glucocorticosteroids, oral loratadine and other antihistamines. 3. For allergic purpura caused by the oral prednisone and other glucocorticoids, cyclophosphamide and other immunosuppressive drugs, as prescribed by the doctor. It is recommended that people with red dots on the back of the hand go to the hospital in time to clarify the cause of the disease and standardize the treatment under the guidance of the doctor. Avoid self-medication.