This is actually a serious issue. I've also had a pretty large number of bristles get into my knuckles. I believe it has accelerated stiffness and pain in the hand that it occurred in (many years ago). Yes, you can use vinegar (which is just dilute acetic acid) to dissolve them. You can also use some diluted hydrochloric acid (muriatic acid). They will dissolve in just a few seconds before your skin will suffer any real damage. Whatever you do DON'T just rub them off (like me) as you will just push them in deeper. I also do not recommend the tape idea, not likely to help and also may imbed further into the tissue.