In winter and Spring Festival, the temperature is low, pores are closed, and the skin does not secrete oily substances to moisturize itself, thus appearing especially dry and even shedding. Therefore, in this season, facial spray which is convenient to carry and can replenish water at any time immediately becomes a great skin care product for moisturizing and anti-allergy. However, there is much knowledge about small spray. If you just spray it on your face randomly, the problem cannot be solved. How can we achieve the best anti-allergy effect? Next, let's have a detailed understanding.