Neatorama pointed out an ad for Lysol douche from the Flickr "Her Secret Past" photo pool.
"So easy a way to banish the misgivings that often keep married lovers apart"
"Appealing daintiness is assured"
"make no mistake -- only a poison can kill germs"
"She should have known better, for she was no stranger to feminine hygiene"
"...no greasy aftereffect"
"No woman who has a normal foundation of good health can be forgiven for failing to 'stay young with her husband'"
"...restore every woman's confidence in her power to please"
"...thinking you know about feminine hygiene, yet trusting to now-and-then care, can make all the difference in married happiness"
More ads here, here, here, here, here, here, here and here. A commenter pointed out the treasure trove of similar ads in the Duke Rare Book and Manuscript Collection.





