Superglue it and move on.
Alternatively douse it in alcohol and set it alight - that should take care of the gauze
But in all honesty, I have had some deep cuts, usually try to seal it with superglue. Try not to get it into the wound, but to seal the outer layer of skin. If it gets into the wound, it delays heeling time. This is a real challenge sometimes when you only have one hand left to work with (because you are working on the other).