Could detoxification help with vaginal odors/infections?

Detox from what?: If you mean "cleansing" regimens with diet, juices, fasting, enemas and the like, my opinion is a definite no. Vaginal odors are generally from lack of the "good" bacteria that inhabit the vagina and overgrowth of "bad" bacteria. Your gyn provider can help advise you about use of probiotics that might restore the balance, treat any possible infections, and advise you about safe products to help.