Hello, I can understand your concern for itchy dry patches on body during winter. After reading your query I can get that it is a condition related to cold injury to the skin. It is characterized by the extreme dryness and then formation of itchy dry patches on body during winter. I suggest you to protect yourself form the cold and wear warm clothing. DO not expose yourself in front of heaters or warmers or similar apparatus directly as it can cause more aggravation of the problem. Wear double inners one over the other. Moisturize your skin directly after the bath when the body is draping and apply liberal amount of the crams or lotions. For any itching you can take cetrizine two times. You can take further guidance from your family physician. All the best.