How To Cure Rusty Smell From The Vagina?

Recently i have been married. My wife has the same issue...during intercourse, i confront a very bad smell...something like rusty smell. This is keeping me away from having intercourse with my wife. I have asked my friends and they say that there is no smell coming from the vagina.

Please help me how can I avoid this smell coming from my wife's vagina.

Regards,
Farhan