Itchy white patches on the hands may be caused by psoriasis, tinea cruris, etc. It can be improved by general treatment, medication, etc. according to the cause.
1. Psoriasis: manifested as red skin plaques, papules, covered with silver-white scales, accompanied by itching. It can be treated with topical glucocorticoid drugs such as halometasone and mometasone furoate cream, or vitamin D3 derivatives such as carbotriol and tacalcitol. If necessary, it can be combined with systemic medication such as Avitamin A and methotrexate.
2. Ringworm: localized erythema, papules, papules, white scales and so on may appear. It can be treated with antifungal drugs as prescribed by the doctor, such as topical ketoconazole cream, terbinafine hydrochloride cream and so on.
Other causes may also lead to itchy white patches on the hands, it is recommended to go to the hospital, to clarify the cause, and under the guidance of a professional doctor to use medication.