try a cool washcloth, be careful not to rub to make the burn worse. You can also ,if permitted, take an ibupro fen to reduce any inflammation or swelling. Try to rest and drink a lot of fluids to keep moisture in your skin. Take care of your skin next time. what you do to it now affects the way your skin looks when you are older.

Just leave, it will sting for a bit but it will be gone in 24 hours.