DDT??
This was a very powerful insecticide which was banned late 1960s or 70s.
And these people used it to clear up a case of the crabs or whatever?
Hopefully the DDT label was just a label and not the real stuff being applied to their bodies.
I grew up on a farm and my father would not let me close to the stuff which came in 55 gallon metal drums. Protective clothing had to be worn to handle the liquid.