<s>[INST] my 5 yr old son has 103.5 fever and a very fast heart rate along. He just woke up from bed. Hes had really bad cough for couple days now, and running fevers since sunday night, a few times getting up to 104. We have alternated Motrin and Tylenol but only temporarily break the fevers. Been to er twice only to get breathing treatments, we have machine but afraid to give him abuterol to much. the hospital says asthmatic but doesn t have asthma please help, would be greatly appreciated. [/INST] Hi Dear,Welcome to HCM.Understanding your concern. As per your query your son have symptoms of fever with high BPM and cough which seems to be due to viral infection, infectious mononucleosis, sinusitis and respiratory tract infection. It could be due to poor and compromised immunity of body and increased susceptibility of getting infected. Need not to worry. Drink plenty of water. Take antibiotic along with cough expectorant and NSAIDs such as Ibuprofen for 3-5 days. Give child proper rest. I would suggest you to visit paediatrician once and get it examined. You should go for blood and urine tests for confirmation of diagnosis. Chew vitamin C pellet daily. Take multivitamin tablet as well to booster immunity. Avoid excessive oily food and cold beverages. Hope your concern has been resolved.Get Well Soon.Best Wishes,Dr. Harry Maheshwari </s>