Calf skin dry ichthyosis is considered to be caused by ichthyosis, you can take general treatment, medication and other ways to improve. 1. General treatment: ichthyosis patients daily need to be able to take a bath, after the bath in the affected area of the topical moisturizer, moisturize the skin. You can also use a humidifier indoors to relieve the dry environment. 2. medication: ichthyosis patients can follow the doctor’s instructions for external use of urea cream, lactic acid ointment and other drugs, with moisturizing effect. Can also be used externally Vitamin A acid cream, can improve the skin keratinization. For ichthyosis patients, it is recommended to go to the hospital, under the guidance of the doctor standardized medication.