I believe that one way to get rid of odour from a vagina is to squeeze lime or lemon juice on it.
As we all know, fish and other seafood has been cooked with citrus fruits so as to lessen or eradicate the fishy smell.
Since vaginas have a fishy smell, or so I heard, perhaps citric juices could be the solution.
I wouldn't advise the use of deodorants, as it might have an unpleasant effect, according to type of deodorising spray you are using.
I spray my balls with deodorant, just in case a girl suddenly wants to suck my balls, but only certain types work well. I find Adidas and Nivea to be okay.
And for God's sake, do not put talcum powder on dicks and vaginas. Talcum powder, when mixed with sweat, sucks.