Hey, WW! That idiot quoted approvingly, or at least without disagreeing, with a guy who
mashed up leaves and put them on head somewhere. Some kinds of topical applications
do work, of course. Mostly they have to be fat soluble, or they won't penetrate skin.
But it is just about impossible to know how much is absorbed.
Then on the other hand there are horror stories, like the one about a very competent
lady chemist working with an especially nasty mercury compound, having a glass container
break and spill on her gloves. It went through her gloves and skin so fast that she died
in spite of immediate medical attention.
I'm grateful to have eyedrops before having introcular tension testing by gadget that
presses on cornea. I like to have dentist apply local anaesthetic before using needle on
my gums. I use sunscreen in spring until I develop the beginnings of a tan.
So I do not despise topical applications propery chosen. I will avoid mentioning
recently publicised ribaldry about benefits of "deep protein deposits." Remember that one?