Hi, last night I found a growth on my boyfriend's penis that looks like a mole that has just developed over the past 2 weeks, also, everytime we have have sex my labia becomes grossly edematous afterward. I thought at first that it was just due to the friction, but now with seeing this growth I'm worried that it's herpes. Could it be anything else? he has a history of unprotected sex as well with multiple partners

Summarized question: What can cause Herpes?