The common causes of itchy pimples on the hands include herpes sweat, papular urticaria, scabies, etc., which need to be treated with appropriate medications for specific disease factors. 1. Sweat herpes: Sweat herpes is a special type of eczema, occurring in the palm and metatarsal areas, mainly manifested as visible, deep in multiple blisters, accompanied by intense itching, palm and metatarsal sweating and so on. For treatment, glucocorticoids can be used externally, such as dieldrin cream, dexamethasone ointment, etc.; when itching is severe, oral antihistamines can be used, such as loratadine, cetirizine, etc. 2. papular urticaria: this disease is mainly due to insect bites, often visible in the lesions of the pinpoint size bite marks, conscious itching, edematous cellulite papules, papules and other symptoms. Treatment, itching severe external glucocorticosteroid therapy, such as hydrocortisone cream, mometasone furoate ointment, etc.; the condition is more serious, oral antihistamine therapy, such as loratadine, cetirizine, etc.. 3. Scabies: This disease is mainly caused by the scabies mite parasitized in the epidermis of human skin, manifested as finger cracks and folds pinhead-sized nodules, tunnels and other symptoms. Treatment, there is obvious itching, can be used externally with sulfur ointment or clomid emulsion treatment; itching is serious, oral antihistamine treatment, such as loratadine, ibastine, etc.; anti-parasitic drugs, such as ivermectin, thiabendazole. It is recommended that patients go to the dermatology department of regular hospitals in a timely manner, follow the doctor’s instructions combined with the relevant examination, a clear diagnosis, and active treatment. When using medication, it is important to strictly follow the doctor’s instructions to use medication, not blindly self-medication.