Well, here's what you do. You stick a needle in there being extra careful not to impale your testicles, trust me it wouldn't be pretty. Then use a pump, any old pump it doesn't matter or some form of suction device and suck all the puss out.
Just in case y'all don't know it is puss in your nutsack. So don't worry when yellow chunky stuff starts puking out the whole in your ball sack that is what's supposed to happen. Now when there's no more puss to come out and all that is coming out is blood, gather up as much of the puss as you can and put it in a container in the freezer. Now ice your balls for a few days and they should be fine after a while. If they turn black consult your doctor.
Now when that puss has turned to ice, invite around some friends and serve it to them as a splendid sorbet.
Or just perform an at home castration. You'll be fine.......