Hi Penny,
You say that you have no idea how it happened and you will probably never know,Thats what the surgeon told me and I still dont know.Just thought that i would let you know that once the wound had started to heal and before the stitches came out I started using COMFREY OINTMENT on my finger,the district nurse could not believe how quickly that it was healing.I still use comfrey ointment or comfrey oil on all cuts and bruises,google it and see what you think,I started using it over 30 years ago.
Peter.