There are more classifications of cold medicines, and when taking cold medicines without knowing the pregnancy, you need to know the name, type, time of taking and dose of cold medicines, etc. You need to know specifically the patient’s menstrual condition and estimate the period when you use the medicine. Western cold medicine is mainly anti-viral drugs, such as virus, which theoretically can affect the development of the fetus, while Chinese medicine has less effect on the fetus. The effect on the fetus varies depending on the time and dosage of the medication. If you take drugs by mistake, you need to go to the eugenics clinic for consultation as soon as possible to get more professional and personalized guidance.