scared

Please help me I am freaking out. Last Wednesday I had a friend over and things got hot. We were just messaging around, like he gave me oral. I don't have sex like cause that's I'm no in a relationship with the guy. And I definitely wasn't about to because we did t hav a condom and I wasn't on birth control. He took it upon hisself to  get a quick stick in without a condom on. He only went in once and I know that doesn't matter cause it only takes once. The day after I had a slight itch or discomfort. Now today the itch is worst. There aren't like big bumps but areas outlining my vagina lips were it looks kind of like a tongue. A bunch of small bumps and it's discolored compared to the rest.  Wish I could post but who wants to see that .I'm freaking out and crying. I'm going to go to the doctor in the morning. Can anyone please tell me if I'm ok? I'm not sexually active so if I had something he had to give it to me.