Level 1: Causes and symptoms of colds during pregnancy Colds are a common phenomenon during pregnancy, and the main reason is due to the decreased immunity of pregnant women. At this time, the body\’s ability to resist external bacteria and viruses weakens, making it easier to contract upper respiratory tract diseases. Common cold symptoms include sore throat, runny nose, cough, fever, etc. Level 2: How to treat colds during pregnancy. It is necessary to pay attention to medication safety issues during pregnancy, and it is not advisable to take medications casually. It is recommended that pregnant women choose safe and effective drugs for treatment under the guidance of a doctor. At the same time, you can take some home self-care measures to relieve cold symptoms, such as drinking more water,