Before you take any medicine, especially cough syrup, please check, whether it will fall you in sleep or not. Generally we don’t want to give any antibiotic (especially to kid) for simple cold and fever. We wait and try to minimize the problem with general medicine.
For cold I give my son “Tofen”. His doctor gave him the syrup for getting cough. I got cold now. Didn’t take any medicine first, but now it’s getting out of control, so too some syrup from my kid’s medicine. But after that today whole day I was sleeping. It may happen because after two weeks I got chance to sleep at day time. Or it may happen for taking the syrup.