I’ve had this spot/sore/lump on my penis for a week now…

so exactly a week ago i noticed a spot on the shaft of my penis. over the course of the week it burst and i cleaned the fluid etc… didn’t pay much attention to it until 2 days ago where i noticed it wasn’t healing. I’ve been covering it with a plaster now but ill attach an image so that i can get a second opinion cos I’m freaking tf out!

called the doctor and they can’t see me until the 17th so :confused:

to add… i did meet someone who gave me oral sex and a handjob about a week before