There was a recent article on the subject on the TV program embarassing bodies the male doc took a 6ft inflatable vagina (where can I buy one of those) into a nightclub and talked to a crowd of women about feminine hygene. Most said they douched once or twice a day he pointed out that the vagina is "self cleaning" and interfering with the bacterial balance causes more problems than it solves! Going commando in warm weather avoiding tights and tight knickers is what he recommended. I'm no doctor but I support that viewpoint!!