You don't mention any sexual activity you've had, and the time frame of that in relation to the symptoms starting. That would be really helpful.
Your sore doesn't sound like or look like herpes. You should stop doing anything to it from now until you see the doctor in case they look at it. Let them see it naturally. It probably is an ingrown hair that got a little infected. Popping sores or picking at them isn't a great idea, as it can introduce bacteria from your hands, and if there is ever anything your doctor can do, popping it or squeezing it ruins that chance.
The urethritis sounds like a possibility. When you go to the doctor, make sure you haven't urinated for at least an hour prior to your appointment.
Let us know what happens.
Here are two images of what they look like now. Again, this is about a week they appeared. Bear in mind, it is graphic since it’s on the shaft on my penis. Also, something I forgot to mention, I have been applying neosporin on it.
https://ibb.co/fX6vFJX
https://ibb.co/VMppS8S