Meant to add that finding out what people are allergic to is a major first step in prevention. Here’s a couple that most are unaware of:
Mangos are cousins to poison ivy. The poison (urushiol) is in the skin and sap of the tree. So, if you’re allergic to poison ivy then stay away from mangos as you may get the same hot rash with oozing blisters.
Another plant to avoid is the mustang grape as it will give many a hot stinging rash.
Colgate white toothpaste [baking-soda &peroxide]
Vicks vapo-rub/generic
Neutrogena acne-wash soap
Now, had I some Jewelweed-based soap at the time, the rash would have gone-away much-more quickly. Recently picked-up some Burt's Bee's ivy-relief soap with Jewelweed extract inside.
I'm stocking all 3 items + B.B.'s soap in my med kits as well.