I have a really bad cough (even had it before i became pregnant) & it wont seem to go away. It keeps me up at night & it hurts under my left boob from coughing too much at one time. What kind of medicine can i take for it ? I know we only take Tylenol but i also heard we can take Robitussin ... I was wondering if its true. If it is, which one am i able to take? Please Comment.