Not sure if you believe it or not. You may try toothpaste. Just squeeze enough amount on your finger and yes, just apply it onto the pile and try to 'insert' some into the hole too. Sounds gross? Lol. But quite effective to many.
Last time mine was darlie, more cooling
But you may have to use it almost daily for a short period of time, depending on how serious yours is and in some cases, for those whose piles are not that big or been long, theirs normally cured (no more) after using this method.