Chemical burn

A friend of mine used a tide pod as soap for a slip and slide and now has received chemical burns on her under arm, armpit, butt, and thighs. The affected area has been rinces and aloe has been put on. Unfortunately the burns are quite bad and one looks open almost like how you would see a brush burn, some areas are heavily swollen and of course inflamed, and she is in intense pain. Is there anything we can do to help the burns heal faster, ease pain, stuff to avoid, ect. Any advice would be greatly appreciate.