A week ago while I was hand stitching I stuck a pin under my finger nail and got an infection under the nail. It got pretty bad and painful and I wasn't feeling well so I went to the Doctor. I ended up having part of my nail removed and the Doctor told me I have a local strep infection in the area were the pin was poked. I have to take antibyotics for three weeks. It is a good idea to clean your pins with some sort of antibacterial product.