Hello,
I would see your GP first, ask for an A1c test, this will show what your blood has been doing for the last three months, normally , cuts that don't heal well are due to a blood sugar disorder, so, it will be good to rule that out.
Some people's skin naturally heals with larger scars while other people heal with hardly a trace! But please get a blood test slow healing can be a sign of diabetes... I used to work for a Dr office relaying patients questions to Drs.