Itching on the back of the hands may be caused by atopic dermatitis, eczema, fungal infections, etc., which need to be treated with topical or oral medications according to the specific cause.
1. Allergy: past history of allergy and hand contact with some allergic substances, there may be an allergic reaction to the back of the hand itching, this case can be oral antihistamine drugs such as loratadine or cetirizine, but also can be used externally to stop the itching of glycerine lotion.
2. Eczema: such as hand contact with some plants, animals or chemicals after the appearance of erythema, blisters, papules, mostly accompanied by itching and other manifestations, the treatment of glucocorticosteroids, such as hydrocortisone with oral antihistamines, such as cetirizine, etc. to alleviate the symptoms.
3. Fungal infection: hand infection with fungus will also appear itching, blisters and other symptoms, the treatment is based on antifungal, can be used externally bifonazole, terbinafine and so on.
Unexplained itching on the back of the hand is recommended to the dermatology department, actively clarify the cause of the disease, under the guidance of the doctor symptomatic treatment.