Dry skin on the feet is generally referred to as dry and cracked feet crust, can be treated with drugs, due to the formation of more complex causes, need to use the corresponding topical or oral drugs for the cause, with the adjustment of shoes and socks to improve the symptoms. 1, environmental dryness: simple environmental dryness can cause dry skin, resulting in dry and cracked feet crust, need to strengthen the emollient treatment, such as cod liver oil ointment, zinc oxide ointment or salicylic acid, urea ointment The typical symptoms are peeling, maceration, erosion between the toes, or many blisters on the side of the foot, and the patient will have painful manifestations, such as pins and needles-like pain or bouts of dull pain, burning pain, etc. Treatment is based on drugs, local topical antifungal drug treatment, such as clotrimazole, econazole, miconazole and other cream drug application treatment, supplemented by oral drugs, such as itraconazole or terbinafine, the treatment effect is better, usually about 4 weeks to heal; 3, allergies: eczema is one of the most common allergic manifestations that can trigger the feet dry and cracked crust, can be symptomatic use of anti-itch emollient cream, such as cod liver oil, Longzhu ointment When the effect is not good, topical antihistamines, such as cetirizine or levocetirizine, loratadine or desloratadine, imipramine, etc., as well as glucocorticoid drugs for treatment, while avoiding feet in a humid and hot environment, avoid wearing impermeable, tight shoes and socks; 4, other: diabetic patients with poor peripheral circulation appear diabetic foot, can also be manifested as dry and cracked feet with crust, need to actively treatment of diabetes and other complications. It is recommended that patients with dry and cracked feet go to the hospital in a timely manner to identify the cause and then follow medical advice on medication.