It hurts help !

So I have a short story to my problem .. after being fingered it’s been hurting to pee this has happened to me for not going to pee right after so I started doing so . But like last week when it happened again and I forgot to go it started to hurt and since I knew why I hurt it paid little attention to it . A couple days later I noticed that this wasn’t the same thing because a) I have to pee often but when I go go to pee it’s very little. And b) it burns ?? How do I get rid of this !? Someone help !