Now this one does act like magic sometimes. If you have a splinter in your finger (wood or glass) take a dose of silica and an hour or two later you may see the splinter just easing to the surface, ready to come out.
I have witnessed this phenomena so many times! Its great for boils and abscesses.. anywhere there is pus.
If you have an injury that seems to be slow to heal - have a dose or two of silica and the process will be completed.