Years and years ago my pediatrician told my mom to use that stuff on my dry elbows which were always chapped and blackened no matter how hard I scrubbed or how much lotion was used. It worked!!
Also - for lice, don’t get the chemical stuff...just get some Cetaphil and work it through like a shampoo. Put a shower cap on and go to sleep. In the morning just shampoo it all out. The Cetaphil forms a crust and smothers the buggers.
Isn’t it amazing...all these remedies that we might already be using for their *advertised* benefits.
I’ve recently learned a bit about the uses of vinegar...and I am very pleased.