Mothers-to-be have a higher chance of catching a cold in winter. Mild cold, cough and runny nose is not a big problem, if the seriousness of a sustained high fever, I am afraid that the development of the fetal nervous system will be affected. Prevention of colds these tips may wish to try: 1, vitamin C and respiratory cilia movement: vitamin C is the body of harmful substances peroxide scavenger, while having to improve respiratory cilia movement and defense function. It is recommended to eat more food rich in vitamin C, such as tomatoes, cauliflower, green peppers, citrus, kiwi, grapes and so on. Vitamin C will be lost in large quantities during the heating process, and should be protected when cooking. 2, do not forget plain water, drink more water to prevent colds and pharyngitis has a very good effect, every day to ensure that you drink 2,000 to 3,000 milliliters of water. 3, massage nasal groove: two hands rubbing each other, palm hot massage Yingxiang points (located in the nasal groove, horizontal flat nose outer edge of the midpoint) more than 10 times.