Dry skin on the legs is caused by the reduction of moisture within the skin.1. In Chinese medicine: you can use moistening and anti-itching capsules, 3 times a day, 4 capsules a time for oral treatment. You can also apply the Chinese medicine Sha Shen Mai Dong Tang plus reduction treatment. The main components are saxifrage, maitong, lentil, peel, yucca, pollen, decoction of 100ml of water, 2 times a day orally. 2, Western medicine: you can use vitamin E ointment or glycerin for application, which can lock the moisture in the skin to reduce its excessive loss. You can also apply the western medicine levocetirizine hydrochloride oral solution, as well as olopatadine hydrochloride for anti-allergy treatment. During the treatment period, it is important to avoid repeated scalding with hot water to avoid significant water loss.