Oh Dear! That is just awful! I know because I took the end of my finger off with a rotary cutter once too. It hurts like the dickens and the bleeding is unbelievable! And to have experienced this twice, Oh poor You! I am cringing for you! Some of these products people have recommended look like they would really work. You could also try keeping your fingertips curled under like chefs do when they are chopping. Hope you feel better soon and that your finger heals up very well!