I'm being treated for a serious vaginal yeast infection right now. I used to douche fairly often before but I have stopped douching completely now. My doctor said that the infection is probably due to douching. It's also possible that I didn't notice the symptoms of yeast infection because I was over-cleansing. I was douching to get rid of odor but I didn't know that odor is a sign of infection.
I highly recommend other women not to douche, especially if you suspect an infection. Constant odor, discharge, itching are not normal. Douching may mask these symptoms but it makes the infection worse in the process. So please, don't try to use douching as a treatment.