Red Dot On Glans, No Pain Or Discharge, No Bleeding. Lamasil And Tolnafate Ineffective. What To Do?

Hello, about 3 weeks ago I noticed a small red dot on the left side of my glans and since then I've been keeping an eye on it and it seemed to have gotten a bit bigger, maybe half of an eraser on a pencil. It doesn't hurt, I do not have any discharge, it hasn't bled or anything like that, it's kind of just there. I've tried lamasil and tolnafate and they both seem not to do much. It's bright red and oval shaped I'd say. I've been with my girlfriend for 8 years and I'd like to say there isn't a chance of any std's. I haven't been the most hygienic person lately because of working two jobs and going to the gym. Guess I got lazy. I'm not sure what to do, I get conflicting information everywhere. I never had skin problems elsewhere so I don't know why I would get it now. I'm 25 and in excellent health. I don't smoke or drink and I excerise regularly.