macatack

Hi all, I cut 1/2 cm my medium left finger slice with a cutter 6 months ago. Hopefully my nerves weren't touch. BUT I'm right handed and now when I use this finger to press my bass string it hurt a lot just in the place I was cut. I'm very frustrated not to be able to play. I'm beginner so my finger arent yet hard at the top, but taking a lot of pleasure to play. So I'm looking for a technique to make the pain less important. Perhaps to have string bigger or less tighten or to put a protection on the finger.... Do you have an idea ? THANKS A LOT in advance PS/ sorry for my bad english