Opinions on amoxicillian for a 7 month old. My 2 older daughters have strep and double ear infections. They are 8 and 7. However I took my 7 month old to the same nurse practioner because he has had a hoarse cough and pulling at his ear. she said that his throat looked fine but one ear was a little red. However she went ahead and said she would prescribe him amoxicillan because he was exposed. This sounded a little silly to me and also has my anxious since we've never even given him a pain reliever.