Red spots on penis

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So, this is fairly embarassing as it is a penis issue, but here I go.
I'm going to link the picture and not post it since this is a SFW board and I'd expect people to not want penises on their screen.

I'll make it short
Picture (NSFW. Just a penis.): http://i.imgur.com/s506Yg9.jpg
Yes I'm going to a dermatologist ASAP, at this point its been too long.
I've had these red spots on my penis for a while. Close to a month, a little more I think.
Didn't give them much attention before because:
- there's no discomfort. They don't itch, aren't swollen, nothing.
- they didn't show up under erection, as the whole penis was redder as a result.
- I always use a condom and I thought they were just bruises

I have only one gf, I was a virgin until about 8 months ago, I always use condoms. I did feel a bit of burning when I washed my penis with hand soap in a couple of situations, thought that could be the source of it, too. She did sometimes bite a little or hurt it inadvertently so I also thought it was just burst capillaries that needed time to absorb.
I never had any serious health problems, but I had a couple minor cases of psoriasis (runs in the family) that went away on their own, and my skin is generally sensitive.
House is fairly dusty, I live in a big city and there's very little I can do about it, but aside from that it's clean and I'm a clean person (not a clean freak, not disgusting either.)

If I touch them I get a very very little bit of itching, more of a tingling sensation. But it's extremely faint, I need to try to actually notice it, so it might just be me being in a bit of a panic by now, especially as I feel nothing strange when I piss, so I'm not really convinced it can be an infection.

It's been a month now and even if they didn't get worse (I'm not 100% sure) they surely aren't getting better.

Anyone has any idea what these could be? Googling gives me a ton of weird results, from cancer to infections.