What Causes Severe Pain With Frequent Urination After An Intercourse?

I had a first time sex with my girl friend.

We went krazy and whole day we had sex without protection.after two days my girlfriend is in pain. She go to toilet very ofen. This almost ten days she is in pain. I asked her to go to doc but she hesitating to go.what can be done?

Is there a serious problem?please doc let me know?