I did ear candling a couple of years ago because a couple of good friends of mine were telling me what a difference it made in their health.
Ear candling is basically a long, hollow candle (it's paper or something dipped in wax and rolled into a narrow funnel shape). The teeny end goes in the ear, the other end is lit up (on fire, yes LOL) and the theory is that the fire causes a suction, pulling allergins and wax out of the ear and into the bottom end of the candle.
One of the girls I know who tried it had some pretty serious swimmer's ear, and it helped her so much! So I decided to be brave and try it!
A teeny bit of something fell into my ear and burned it. It was so painful! Earlier this year my allergist was looking in my ear and he says "you sure have a lot of wax in your ear." He pulled it out with some tweezer things. It was pretty big. And I'm pretty sure it was from the candling.
I found out later that you should have a professional do the candling. My friends do it to each other, and they are fine. But I have to admit, even though I still wholeheartedly believe in its benefits, I think that I would be too afraid to do it again, even if I had a health care professional do it.