<s>[INST] hi, My son is 3, and he has, what sounds like wet couch in combination with dry cough when he feels hot. I mean after running, or when he is in hot room. It never went away after he had a virus (about 6-7 months ago ), during that virus his fever went as high as 104F degrees, about He also has the following symptoms: dry, stuffy nose(his nose is not running but when he inhales or exhales through his nose i can hear that it s clogged) and very dry chapped lips. My question is what could it be and what causes it, and what could happen if left untreated, and what can I do to treat it. [/INST] Hi Dear, Welcome to Chat Doctor. Understanding your concern. As per your query your son have symptoms of flu like symptoms which seems to be due to viral infection of poor and due to poor immunity of body. Need not worry. Take combination of antiviral medication such as Acyclovir along with paracetamol for fever relief. Do warm saline gargles. I would suggest you to visit pediatrician once and get it examined. Doctor may order certain test like throat swab test, viral culture test or x-ray to confirm the diagnosis and rule out other causes. You should do tepid sponging if fever is of high grade. Maintain proper oral hygiene. Take steam inhalation to reduce the congestion of throat. Keep sipping warm water. Hope your concern has been resolved. Get Well Soon. Best Wishes, </s>