Rashes on the hands can be caused by contact dermatitis, ringworm, and eczema. Usually, general treatment and medication can be used to relieve the symptoms. 1. Contact dermatitis: allergic or irritant reactions occurring after the skin on the hands comes into contact with certain sensitizing or irritating substances, and it is necessary to clarify the causative factors and avoid them. Secondly, medication should be given, such as topical glucocorticoid ointment mometasone furoate cream and hydrocortisone butyrate cream. 2. Ringworm: caused by fungal infection of the skin of the hands. You can use terbinafine hydrochloride cream, miconazole cream, clotrimazole ointment and so on to smear, if necessary, can be combined with oral itraconazole and other drugs. 3. Eczema: caused by a variety of internal and external factors stimulation, resulting in a rash on the hands. Zinc oxide ointment can be used for treatment, itching is obvious, can be combined with oral antihistamine drugs such as loratadine. If the patient has a rash on the hands, it is recommended to go to the hospital in a timely manner to identify the cause of the disease and then targeted treatment. The above medications should be used in accordance with medical advice.