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They are made to fit the shape and the size of your ear canal.

If something is inserted far enough into the ear canal, it can cause damage including hearing loss.

She took hers out of her left ear canal and returned it to its protective case.

Do not dig into the ear canal, and never use a pointed object.

Also, the cotton head may fall off and become lodged in the ear canal.

This causes the ear canal to look red and swollen.

This will allow the drops to run into the ear canal.

But how well do you know the size of a person's ear canal?

It is usually designed to plug into the ear canal of the user.

It is possible that the ear canal can be closed.