I cut my thumb with a knife 3 hours ago. It didn't hurt and I wasn't too worried. I wrapped it with a paper towel and tape really tight and I could feel my heartbeat. 2 hours later, I removed the tape and there was a mess of dark blood. My thumb was a little blue and somewhat bloody. After a minute, it started seeping blood again, so I covered it less tight.
This just made me curious. How tight should I have covered it to begin with for the best results?