A person should never use a regular candle to clean out earwax. Ear candles are specifically designed hollow tapered cones made of cloth and soaked in beeswax.
Ear candling is a practice in alternative medicine where you place a lit, hollow, cone-shaped candle into the ear canal. While a person should certainly never use a regular candle to perform ear candling, even specially designed ear candles are ineffective and dangerous. Scientific research has disproved any benefits to the technique, such as the claim that earwax gets sucked up into the hollow cone of an ear candle due to a vacuum created by the candle's flame. If someone wants to experiment with ear candling, he should always first consult a health professional.