Wife is pregnant, she has a cold and a dry cough what can she take to help that doesn't affect the baby?

Rest: Rest, fluids, and time are the safest.Plain Robitussin or cough drops can help.The NIH actually did a study proving that chicken soup really does help.Hot tea with honey and lemon can sooth as can inhaling steam and gargling with warm salt water.If she needs more she should check with her doctor.If it is influenza she may need an antiviral like tamiflu (oseltamivir) or even hospitalization.Hope she feels better