The cause of coughing in pregnant women may be upper respiratory tract infection, or allergy, should be for the cause of the corresponding treatment. 1. Upper respiratory tract infection: pregnant women with upper respiratory tract infection may be coughing, headache, runny nose symptoms, which should be based on the severity of the symptoms of pregnant women, the duration of pregnancy, choose the appropriate medication, if the symptoms are mild, you can drink more water, pay attention to rest; if the symptoms are more serious, then consult a doctor in a timely manner, under the guidance of the doctor’s medication. 2. Allergy: If the pregnant woman is in contact with dust, pollen, coughing symptoms, it may be caused by allergies, this time to do is to stay away from pollen, dust, these allergens, the symptoms of light is not recommended medication, if the symptoms are serious, you can take the fetus does not have an impact of anti-allergy drugs, such as paracetamol. The above medication is recommended to be taken under the guidance of a professional doctor, and should not be used on its own to avoid adverse reactions.