Uh, need halp, anyone knows what this is?

[Alex K]

What's wrong with having mouth herpes? It's just a cold sore. Go to the doctor and get some cream.

I was about to say the same thing.  Oral herpes is INCREDIBLY common.  I read a statistic some where (don't quote me for accuracy here) that close to 90% of individuals will have contracted it by the time they reach late adulthood.  It doesn't mean you were making out with someone's herped out genitals.  

Yup, I read it's 85%. As I said above, warning a partner about having Simplex type 1 is almost redundant. If you kiss someone, you simply have to assume by default that they have it. If you've had contact with three people, your chance is like 99.9% of having been exposed to it.
What you *should not* do is have oral sex during an oral herpes outbreak. Genital herpes is usually Simplex type 2, but I've read that type 1 increasingly appears as a genital infection.