Hi was hoping you maybe able to help.
My mum aged 55 has an itchy sore on her heel. It's been there for at least 18months and she has previously been to the doctor about it who then referred her to the hospital who basically scraped it with a scalpel and said it's an old blister and made her feel as though she was a bit silly for worrying about it.
This sore is still itching her and she's complaining about it and rightly so but feels uneasy about going again to doctors about it but we said one of us will go along too incase she gets fobbed off again.
It is like a browny/black colour and like a scab. I have a picture but not sure how to upload on my phone?
I was just wondering if anyone could have any ideas of what it could be as we are thinking it must be more than just an old blister if it's still itching her. Obviously I have looked up skin cancer but I really am clueless and hoping for some help 
Any replies will be much appreciated thanks