The homeopathic remedy anaesthetic! It's for injuries to parts rich in nerves, such as fingers, toes, spine especially coccyx.
All these places are very painful when wounded , aren't they! Hypericum removes local pain.
Buy a hypericum and Calendula tincture and use a few drops in water for cleaning wounds. Hypericum itself, as a remedy in pills, taken in the mouth reduces the levels of pain felt when we are burnt or have hurt one of those oh so tender places.