The obvious problem that somehow got completely ignored for decades was that Lysol is very much a caustic poison. If you apply it to your skin, which more or less all the women were doing for freaking 30 years, it burns and itches like there is no tomorrow. Which they of course attempted to cure by applying more Lysol. Which got exactly as ugly as you imagine, to the point where words like "severe inflammation" and "fatal" get thrown around.
After the AMA finally put the cork on the genital Lysol, what was left of the company was acquired by Sterling Drug in 1967. The new owners took a look at what had been going on and, presumably after some violent retching, decided to actually take the product's beneficial side (being a kind of good, if poisonous, disinfectant) and apply it to uses it was best suited for (anything that is not a living thing, and especially not a vagina). Lysol found a new life as a cleaner and disinfectant, and scores of confused women found themselves living in a world where they suddenly had to clean floors with something they had been using to clean something else altogether for years. Something that was now clearly marked as being highly toxic.
Ads from 1940s Look Magazine
Lysol's marketing team would go on to successfully promote Chesterfield cigarettes and the Ford Pinto.