The boric acid is great for clotting and is a great antiseptic.
And it kills roaches.............
I use it in a solution with sugar to kill carpenter ants. I buy the 99% at Home Depot, mix it with water and sugar and use a sprayer on their paths to the house. Later in the summer I get out the shop vac and suck up the bodies. It’s interesting to watch them bring out their dead or actually eat the stuff. I also put it down as a powder along their trail.