During the Spring Festival, due to the cold weather, the air conditioner is left on for a long time, and gatherings of family, relatives and friends also increase significantly, which greatly increases the risk of respiratory infections such as colds and coughs. In addition, pregnant women are more sensitive to their surroundings. are sensitive and have weak resistance, so experts recommend that pregnant women should wear loose clothes to keep warm indoors and not stay in air-conditioned rooms for long periods of time.