The Day Old Cold

Hey Mom's...so I am on my third day at home with a sickly Butterbean. I am totally amazed that one minute he looks like he is about to fall apart and the next he is about to take the house apart. I have the vaporizor on him and the nurse at 888-563-5437 ask a nurse said to give him Karo syrup instead of cough meds. Has anyone heard of such before?