What is this pimple in a straight line on the shaft of my penis?

[Karl_12]

Hey guys, so I've had a pimple on the bottom of my shaft for about 4 months now and it's really starting to get concerning. When on vacation, a girl took advantage of me when I was extremely drunk and essentially raped me. I don't know if that had any relation to this pimple but I felt that might be relevant information seeing as this appeared shortly after that. For all I know, it was there before and I never noticed but I know for sure I was made aware of it shortly after returning from vacation and she didn't use any protection so my stomachs been in my chest for a while now.

The strange thing about the pimple is that it doesn't seem like anything I've read about online. I've read and seen pictures of just about everything I can find, yet I haven't found one clear cut answer as to what this is or how to treat it. From what I've gathered, it seems like something I shouldn't be concerned about but I just wanted to make sure.

So the pimple itself is small, white, and normal looking. I've been shaving for years so ingrown hairs are common and it almost looks like one of those after the swelling and redness goes down, before it's ready to pop. There are also many times where it looks as though there is an ingrown hair but I've never been able to get anything out.......this is the weird part though.....this pimple is the only one anywhere on my penis yet it's attached to a white, straight line of pus. As you can imagine, my mind immediately jumped to ingrown hair, seeing as it looks like a hair grew under my skin and up my shaft, yet every time I try to pop the pimple, pus is secreted down the line at the base (opposite end of the pimple). So essentially it's like squeezing an almost empty tube of toothpaste; there a large amount of toothpaste at the bottom of the tube so when you squeeze the bottom, toothpaste runs up the tube and out the top....now instead of toothpaste, image that's pus and when I squeeze the pimple, pus is secreted down the shaft at the bottom of the line.

Another thing to note about its location is that is right near hair follicles. In fact, I'm pretty sure a hair just grew out of the exact spot the pus is secreted, meaning it may actually be a follicle.

This pimple has never itched, caused pain, or become swollen. I try to leave it alone but I always seem to go back to it and every time I squeeze it, at least a little bit of white puss comes out (at the bottom of the line near my follicle of course). I've also never had any physical symptoms listed for herpes such as nausea or pain. From my research, it seems like maybe folliculitis or something of the sort but I can't find any sources that match my description. Again, this is a single pimple for about 4 months now that is part of a one inch white line and when it's squeezed, pus comes out but only at the end of the line near the follicle, not the pimple itself.

What should I do? I plan on seeing a doctor but I'm currently home from college on vacation so I was going to wait until I went back and I didn't have to involve my parents. It's also an extremely stressful situation since I was technically raped so if this does turn out to be an STD, it becomes an even bigger problem. Are there any treatments I should try or resources I should use before completely freaking out??

Thank you, I hope I provided enough information.