Skin itch cure
Caffeine, in the dose range of 100milligrams, or nicotine in the 4 milligram range may cause pleasure in human adults.
However the intended function was to sicken any creature that tried to make a meal out of that plant
Caffeine, as well as nicotine evolved in plants, to keep themselves from being eaten.
Chewing bugs and grazing animals consuming the plant soon would become nauseated.
Caffeine would prevent the plant
from being excessively eaten.
The skin itch cure, relies on the fact that microscopic mites are chewing away on your skin.
The cure is to take one's morning cup of Joe,
dip a sponge into your coffee
and commence scrubbing it
onto thy skin
Scrub that coffee
Onto itchy bastards
chase them down
on pubic hair
On the scalp.
Beard and eyelids
A bug bath in expresso,
overdosing their nerve cells, what
few they have or need to do their
various bitings , creeps and crawls
The dose is quite lethal for such tiny fellows,
to the great relief
of the human host.