Review (5/5): One of may uses for Bentonite Clay
I get extreme swelling from mosquito bites. When I learned about Bentonite Clay I gave it a try and was very pleased. Stirred it into some water (do not use metals) in a glass bowl with my fingers and waited for it to thicken. Then I applied a nice and thick layer it to the bite and swollen area. The swelling reduced significantly and lasted a lot less than usual, not to mention the area I covered didn't itch to death.
I can see this helping with poison oak, too.