A few days after reading this post, my dd had her worst rip ever. Her entire callous ripped off while working bars. She now has the distinction of having the biggest rip ever in her gym. It really was quite something to see, the level 10s were even coming over to see it, lol.
Anyway....I decided to try the teabag idea on this rip. WOW!! It looked SO much better by morning. It had a fresh layer of dry skin on it by then and looked so much better. Now, of course she didn't stay off bars, so she ripped it back open the next day and a little bit the day after that, but not nearly as bad as it would have been without putting the tea bag on each night.
I highly recommend the tea bag idea!!! It worked phenomenally quick, not sure how it works, BUT it does work!