N.H.
I am shocked that they are giving you antibiotics when you are so newly pregnant. I got really bad sick (everything green) on Christmas day & because I was pregnant (17wks) the urgent care doc refused to treat me w/antibiotics. I called the oncall OB who said that the RX would just give me diarrea & a yeast infection, and as bad as I felt she promised it would go away on its own-it did eventually. But when I got sick this last week again with what felt like strep & a nasty nasal infection MY DOC did treat me with a Z pack (which I'm now freaked out to take). I don't know if it was my particular doc being more lax with meds or if it's the fact that I'm further along (23 wks).
But honestly you have put that little one through a lot of meds so early, I would say stick with the Tylenol for the fever & try some natural remedies-tea, steamy showers, gargle salt water, etc, if it doesn't go away in 7-10 days then go back to the doc. I know it sucks to hear, but this is a nasty flu season & having a little one especially if they're in pre-school (my little one is 2&1/2) doesn't help.