The fact that you have had only one sexual partner is quite consoling to a doctor, but as the itching has lasted for quite some time could mean that both you and your partner would have to be screened for all sexually transmitted infections.
Having a two way discussion would have helped as I would have liked to know about other symptoms like vaginal discharge
, if present colour; foul smelling vagina or urine; etc.
But for now, I would advise getting screened for urinary tract
infections (UTIs), all sexually transmitted infections and conditions that can cause recurrent infections (eg. Diabetes
In the meantime, consume plenty of water and abstain from all forms of sexual contact till your doctor deems it fit.