<s>[INST]My son is almost 4. he vomited 2 days ago and ever since over the last 48hrs his temperature is going up and down and up to the high 39 degress. We have been giving him liquid panadol and nurofen over the past 36rs but nothing has changed.  He is very hot and his body is aching. No sweating.[/INST]Hi... Thank you for consulting in Chat Doctor. Fever of few days without any localizing signs could as well a viral illness. Usually rather than fever, what is more important is the activity of the child, in between 2 fever episodes on the same day. If the kid is active and playing around when there is no fever, it is probably viral illness and it doesn't require antibiotics at all. Once viral fever comes it will there for 4-7 days. So do not worry about duration if the kid is active. Paracetamol can be given in the dose of 15 mg/kg/dose (maximum ceiling dose of 500 mg) every 4-6th hourly that too only if fever is more than 100F. I suggest not using combination medicines for fever, especially with Paracetamol. Regards - </s>