Irritation after sex

Does anyone else feel that their vagina is really irritated after having sex? Every time my boyfriend and I have sex, I always feel like it's been rubbed raw and burns really bad when I pee (I always go to the bathroom right after). At first I thought maybe it was because I wasn't wet enough and so we started using lube, but it really hasn't helped. I've asked my gyno about it before and she said that some women just have that problem. It's really frustrating because once we're done, that's it. No more sex for the rest of the day because it would just hurt too bad. I've kind of just given up hope at this point!!!