I just lightly clean around receivers in the ears.

Here is the quote:

Updated clinical guidelines from the American Academy of Otolaryngology released last Jan. 3 echoed the dangers of using cotton swabs, ear candles, and other “unimaginable things” on one’s ears, including temporary or permanent hearing damage due to impacted cerumen or earwax.

http://www.techtimes.com/articles/19...ax-removal.htm

In the updated guidelines published in the journal Otolaryngology-Head and Neck Surgery, the researchers reminded it’s wrong to clean one’s ears to begin with – it’s misinformation that earwax indicates uncleanliness and should therefore be eradicated.

Excessive cleaning can irritate the ear canal, cause infection, and even increase the chances of excessive buildup, or what’s known as cerumen impaction, the guidelines note.
There’s no evidence that using ear candles, a process that relies on heat to remove buildup, actually works at clearing impaction, and this can cause serious damage to the ear canal and eardrum, the guidelines also emphasize.