Ooh ouch!

been there with manes! Why I invested £2 in a mane comb haha
My hands are gradually becoming as tough as my Dads-a joiner/labourer- and I have proper man shaped hands already

good for gripping ropes and reins, not good when looking for pretty rings etc for prom!
Worst burn I got was from a nylon lunge line... 1" burn across my forefinger, 3" burn across palm couldn't hold a pen for like 3 days (difficult to explain at school why my writing suddenly turned all spidery) and never lunged without gloves since!!
If you need to protect it, put a normal plaster on it and cover it with duct tape/whatevers closest to hand. Just use 2 little strips each side of the joint so you still have movement :)