If you get hives in winter, cold urticaria is more likely. The rash is mainly manifested as pale white colored windy or edematous erythema with itching, and has some accompanying symptoms, such as fear of cold, cold hands and feet, delayed menstruation, and a pale tongue with white coating and smooth pulse. For cold urticaria, you can choose Ephedra formula for treatment. The composition of the ephedra formula is based on the characteristics of the cold type of urticaria and is composed of ephedra, Bai Xian Pi, Chen Pi, Dan Pi, Danshen, Almond, Fucus, and Dried Ginger Bark for addition and reduction. It can also be treated with topical application of Furfuranate lotion, and is advised to avoid spicy and stimulating diet, and to pay attention to keep warm.