Superglue is my first choice for cuts, and it helps to wash it out with hydrogen peroxide or alcohol first to reduce infection. I have used it on slices on both left and right fingertips acquired while setting up the PA before gigs and it enabled me to play with no problems. It is actually marketed for this purpose as Liquid Bandaid or something, but it's more expensive with those words on the label.
It also works well at preventing/delaying blisters on your hands. I figured this out at a 2-day combat handgun class where we fired upwards of a thousand rounds and the checkering on my grip was wearing raw spots on my fingers.
Is this thread oficially hijacked, or is this a natural evolution? :-)