A small part of my gum in my mouth is red. Hurts to brush but doesn't bleed?

Hey guys. I am wondering what this is. On my front teeth, I have this red spot on my gum, very small, that doesn't hurt whatsoever. It only hurts when I brush that part and is very sensitive to the touch. It doesn't bleed just very sore when touching it with anything. I know I have really bad teeth.

The dentist said that it isn't anything and that I just need to brush my teeth carfully and use mouth wash and it should go away. Well, it isn't going away at all. Still there. Still hurts. Still doesn't bleed. I don't know what this is and it's freaking me out.

I tend to be a worry freak about the slightest thing and this may be nothing, but then again, it could be something serious and that's what scares me if it is something serious.

Normally, it doesn't hurt. Not even one bit. The pain doesn't linger after I brush my teeth just hurts during the brushing in that certain spot. The Listerine doesn't make it hurt either.

And the pain feels weird. It isn't any normal pain. It feels like the toothbrush is going inside my gums and feels just weird is the best way I can describe it.

Anyways, I didn't mean for this to go on for an entire story book. I'm just worried as to what this might be. Thank you very much.