After the accident, I found my palms and foot sweating a lot. I tried using anti perspirant spray on my palms but didn't really work that well like using it on armpits.
Don't know about hands and feet but try DRICOL for your armpits. Lots of cc uses it. You get it at a chemist and sometimes at boots or superdrugs. You might have to ask for it over the counter. It works wonders!