How can you get rid of a pimple quick and easy with no toothpaste or bought supplements?

I have a pimple that will not go away. It very persistent and with sensitive skin, I can't use harsh chemicals. I need it gone in 2 days because I have a reunion and I don't want to turn up with a bulb on me. I am also not willing to pay a fortune for any might work supplement. Any home remedies that can help me?