Hi I'm 19 and me and my boyfriend has had unprotected sex. And I'm
Getting yellow discharge and burning and itching on my
Vagina and anus I went to the doctor they gave me a pelvic
Exam and they said there tests came back negative for a
Yeast infection cause of the cream I was using for it was
Starting to cure it but she said because of the syptoms I told her I was having ,she preescribed a one day pill for a yeast
Infection and 30pills for a bladder infection the itching has
Stopped but the burning on the anus hasn't and I'm still having
Discharge .any ideas on what it could be and what I should
Do?

Help please

You'll need to go back to the doctor. We can't give you a diagnosis on the internet, and there are way too many possibilities to even list.

Only a doctor can give you a diagnosis.