Children with a lot of rice-sized bumps on the hands, can be caused by papular urticaria, sweating herpes, ringworm, etc., you can take general care, cetirizine hydrochloride and other medications to improve. 1. papular urticaria: also known as insect bite dermatitis, is an allergic skin disease of the skin after mosquito bites. It can be manifested as a lot of rice-sized bumps, accompanied by itching, often causing the child to scratch. Avoid contact with allergens or irritating substances, use glycerite lotion for external application, and take cetirizine hydrochloride orally to fight allergies if necessary. 2. Sweat blisters: appear symmetrically on the hands, with allergies, fungal infections and so on may be related. Itching is obvious in the acute stage can be oral glucocorticoids in small doses, such as prednisone, etc., at the same time, glycerine lotion topical astringent itching. 3. Ringworm: Fungal infections have a variety of manifestations, and can be presented with pimples the size of a grain of rice. Available bifonazole cream topical antifungal, used for 2-3 weeks, note that must be used under the supervision of a guardian. The child’s hands had a lot of rice-sized bumps may also be related to eczema, hand-foot-mouth disease and other diseases, it is recommended to consult a doctor in time, a clear diagnosis, the above drugs used under the guidance of the doctor.