T.S.
I always say better safe than sorry when it comes to going to the Dr.. you could try using a bulb syringe with warm distilled water, squirting (not hard, light suqirts) the water into the ear to loosen the wax, repete this several times. If the water alone does not work, try liquid colace. It is typically used as a laxative, but the oils will losen the ear wax; my oldest daughter had this done when she had a large wax build up. The Doc. recomended I do this once a week. These are only suggestions, I fully recomend you speak with your childs Doctor. Recurrent ear infections can be serious. My oldest daughter ended up needing ear tubes from the recurrent infections. I now wear hearing aids, because of severe hearing loss in my middle ears due to untreated ear infections when I was a child.