My 14 month old fever cough throwing up

My baby went to the Er for a 105.4 fever and they ran some test and they all came back negative and the dr said it was an ear infection. When they gave him some Tylenol and ibuprofen his temp went down to 101 but whenever the Tylenol and ibuprofen wear off his temp is back to 105. He’s had a cough for the past week or 2 and he just threw up. Is this normal?