So I've used ear candles. I believed the hype about removing wax and detoxifying.
When my brother questioned the physics behind the process, we did an experiment. We used a closed plastic tube to simulate an ear and burned a candle as if we were "candling" the plastic tube. The results were exactly the same as when a similar candle was burned in an ear.
The "ear wax" is simply the melted beeswax and soot which looks a great deal like ear wax. The "yeast dust" is just crumbled beeswax.
Here's the photo of the ear candle burned without contacting a human. We put a small piece of paper-towel in the plastic tube to catch any material that would have fallen into the ear. There was a small round chunk of beeswax in the towel and considerable dust in the plastic tube; so the process can actually add to the dirt in the ear without any capability to remove anything.
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Take a deep breath,
Dr. Ron