If you have a cough in the third month of pregnancy, you can first take a dietary treatment to help stop the cough if the symptoms are not very serious. For example, you can boil garlic and rock sugar water or steam oranges with salt, which is good for relieving mild cough and has certain antiseptic and anti-inflammatory effects. If the cough is more severe, it needs to be treated with medication. Before using medication, you need to check the blood count. If the blood count has elevated white blood cells or elevated neutrophils, the cough is caused by a bacterial infection, and it is best to use antibiotics for anti-inflammatory treatment. If you are not allergic to penicillin, you can use amoxicillin for anti-inflammatory treatment, which has less effect on pregnancy. If there are no white blood cells, or elevated neutrophils, viral infections are more common, so you can take oral anti-inflammatory drugs for anti-inflammatory purposes. For example, Pu Di Lan Anti-inflammatory Oral Liquid has a good antiviral effect and is more effective in relieving coughs caused by minor viral infections.