Rips are injuries. Smarter gymnasts and coaches suffer fewer.
Prevention is the #1 goal.
… calluses form on the palms of the hands because of the repeated rubbing of the hands against the bars. …
… You want to keep the calluses thick enough that they protect your hands, but polished and smoothed so they don’t catch on the bars. …
Use something like the RIPT Grindstone to smooth calluses.
For more, click over to GYMNASTICSHQ – GUIDE TO GYMNASTICS RIPS: PREVENTION & CARE
Not mentioned in that article is my favourite treatment for healing rips.
Before going to sleep at night put your ripped hand in any kind of plastic bag. Inside you put plenty of moisturizer. Seems almost anything keeps the skin moist. Tie it on with loose string (not tight elastics). Most rips are healed enough to train after 1 or 2 nights.