Mole or what. It is. is it just a mole.

As you can see in this pic, I have this on my left leg. I noticed this 5 years ago for the first time. I had chicken pox 5 years ago. So, I never noticed this or saw this before that. So, i thought maybe it's due chicken pox. I never saw it before so it bothered me to check. It felt a little different from normal skin. Like rubbery skin..which I usually try to peel with nail. But overall, it never bothered me for once in last 5 years. It doesn't look any bigger I believe..it sure doesn't pain at all. But now I am having a little anxiety issues so I want to clear that it's nothing serious. And if it is.. what it is..is it just a mole..or is it damaged skin by chicken pox from 5 years back. I HOPE IT'S NOT A CANCER OR SOMETHING SIMILAR.