A.S.
For my son excessive ear wax (and I do mean excessive) seems to correlate with food intolerance. We notice it when he eats wheat (he is gluten intolerant) and sometimes dairy. My husband has the same issue so we thought it was just genetic. When we went gluten free we noticed the ears suddenly cleared up too. If we travel or he goes to a party and has wheat - boom - the wax is back.
No advice on the breath . . . has she been on antibiotics? Could her gut be out of balance? I might try some probiotics (carefully of course).