I can't tell you the last time I had a pimple. But, of course, 9 days before my sister's wedding, I feel a pimple developing under my skin - right smack in the middle of my chin. I can tell it's going to be cystic pimple, which usually takes longer to disappear for me. Any suggestions on how to stop this pimple before it surfaces? I would hate to ruin my sister's wedding photos with a big growth on my chin.