Hi Michael,
Permethrin is a synthetic pyrethrum formulated during WW 2
for US troops to combat lice which carried disease. It is currently used for
treating head-lice in children. Apart from a transient sensitivity skin rash
in a small proportion of users it has no side effects for users, but keep it
out of your eyes and other mucous membranes; it stings.
We wash our clothes in a solution of it, insects just
drop dead when they touch the clothes. It lasts in the clothes for several
washes/rinses. Permethrin soaked mosquito nets have cut the death-rate from
malaria in children in some African countries by a third.
We buy sachets with instructions from "The Travel
Doctor", a syndicated group of GPs with expertise in travel medicine,
inoculations, advice and the like.They should come up on Internet explorer.
A few years ago it was apparantly sold in North Qld. supermarkets a lot more
cheaply, don't know if it still is.
I have checked it's safety with the manufacturers, it
has been extensively tested and it is safe for humans. No doubt you would
get a gutache if you swallowed a couple of Kg, but it does not act on humans
the way it does insects. Internet ratbags come out of the ether to condemn
it, but we've used it for years, it's VERY effective, and we've had no
side-effects.
Cheers
Michael
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