I went to the doctor about a week ago and found out I had strep throat I took the meds the doctor gave me to take for five days but in that time I developed an upper respitory infection and its a pretty bad one I'm coughing 24/7 and when I get hot it makes me cough worse and when I cough my eyes also water and my throat feels itchy . I jus want some kind of releife so I can go to sleep but I'm brokeso iI can't go out and buy anything I hav some mucus releif could I take that for my cough or would it make my cough worse ?