Hi All

I am a 41 year old guy and for about 15 years have had a mole that pops up once or twice a year.

When it does it huge, angry, dark purple / black in the centre and raised but easily scratched and painful 

The whole area gets itchy then a few days later it arrives, grows to full size over the course of a week then shrinks and disappears 

I have spoken to numerous Drs and a dermatologist who all say it's totally fine, but does put the fear of his into me when it arrives 

Is this really normal and something that I should not worry about?