My son has cold since last Friday. He had runny nose but started to subsidise mid week which was then followed by cough again this friday he started coughing and had runny nose both now. Along with that he has fever since yesterday. I have given him levocit, calpol and a cough syrup but nothing seems to be working. What should be done? His fever goes away as soon i give him calpol but returns back after 5-6 hours.