Hello J.
My son got his first ear infection at about 8 months. I and my husband's father have a fatal allergy to penicillin and all the derivatives. So, the doctor and I decided to not give antibiotics until he is old enough (1) so that his body has longer before exposure since the first time he is exposed there is no reaction it is the second time but like feeding kids food if there is a history of allergy in the family, the longer you wait, the better chances are that they will escape the allergy and (2) so that he can tell us if something is wrong with the medicine. We did have a back-up antibiotic not in that pen. family just in case. But here is what she told me:
50% of ear infections are viral. Antibiotics do not work on viruses. However, at this age, they generally just give antibiotics anyway because it is hard for parents to see their little angels in pain! The key is, if you are going to try to ride it out, day 4 is critical. If on day 4-5, the symptoms are not improving, then it is bacterial and you MUST treat with antibiotics. If it is viral, the symptoms will subside. (Generally, by the time you get to the doctor, you are on day 3/4, so it just APPEARS that the antibiotics are working anyway).
So to keep her comfortable, give baby tylenol/motrin around the clock. Motrin does not seem to work for my son but some say to alternate between the two, 3 hours between each, don't let the fever spike inbetween doses. If one or the other does not seem to work, only do one. Keep her hydrated and watch that 4th or 5th day closely!
I hope she feels better for her first Christmas!!!