I'm not sure what this is, like a hole in my skin left by spot

My face is pretty much clear except for this which makes it really stand out, it is this circular bright red spot on my nose a bit bigger than a pen tip. I think it may be from a spot I never noticed, since my skin was clear I was really studying it in the mirror at the time I first got it but one day over a year ago I noticed it and it hasn't gone away since. When I look at it closely it is like a hole in my skin, the hole being where a spot would have been, which doesn't heal. Somedays it has this white bit in the middle. Yesterday blood started coming from it, which is only the second time in the year and a bit I have had it it has done that. Could someone please help? TA