Hello, 95% of the times' fever in this age group is usually viral in origin and hence I do not recommend indiscriminate usage of antibiotic please. If the kid is active when there is no fever and is not having any red flag signs like respiratory distress or blood in the vomiting or motion and if the kid is feeling better when the fever is touching the baseline you need not worry about it at all. Hope I have answered your query. Let me know if I can assist you further.