M.P.
I always use a hydrogen peroxide/water solution in the ear canal to clear up any ear wax buildup. A few drops in, wait several minutes, and flush out in the shower. It's very effective. I have done this with my kids, also and was amazed at the wax that came out!
I don't know about those ear candles- I've heard they can dangerous and are not known to be that effective. I would afraid to use them on myself or my kids.