@June1952 I never wore a calico bag with a block of camphor - but When I was very young, my mother cut a hole in the top of a potato bag for my head & 2 holes for my arms, and told me to go out & play in THAT .... ( as I'd played in mud with my nice dress on.) Apparently I paraded up & down the street in it, telling the neighbours to come look at the lovely dress my mother had made me ..... LOL
Yes to 2, 3 & 4 tho!! The salt works, but tastes horrible - and the charcoal is like eating dirt!! :(