I Have A 7 Month Granddaughter That Is On Her

I have a 7 month granddaughter that is on her 3rd medicine. 1st she had rsv. 2nd walking pneumonia. 3rd ear infection. She has only been off medicine maybe 1 week before the other. Still on this one and she has woke up from her nap with weezing. Weather is bad here, so I was wondering if you had any suggestions?