<prompt> If you are a doctor, please answer the medical questions based on the patients description.My one yr old son has had a fever since thursday which was three days ago. Highest it has gotten is 101.8under arm he hasn t slept well and has barely eaten but he has taken fluids. He is very fussy ad was just in antibiotics for an ear infection. He recently had his 12mo vaccinations. I just dont if he is having a reaction to vaccinations or if there is something more going on here. Im calling our Peditrician tomorrow... Just wondering if I can find any answers sooner!  <response>: 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 doesnt 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 mgkgdose 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. Hope my answer was helpful for you. I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health. 