What Is The Treatment For Itching And Discharge From Penis?

Hi doctor I'm Paul a 16 year old male. And I have a problem I hope you can resolve. I received oral sex for the first time last week and two days after this happened I began to produce this white liquid from under the head of my penis. I than began to itch it making my foreskin dry up and making it sore to pee. The substance isn't that annoying it just get annoying when it gets on my underwear. I'm still a virgin so I don't think it's from sex I don't want to see a doctor as I don't want my parents finding out about it. Please help me I want to know what it is and how I can get rid of it ASAP also I am not in a relationship and am uncircumcised !