A natural cure for a pimple - to get rid of it fast - is to cover it at bedtime with regular toothpaste (not a gel).
Dab it only on the pimple and not over the entire area. In most cases, the pimple will be gone in the morning. If you have already scratched, picked or popped, this remedy will not instantly remove a hole or scab.
Or, You can use a coating of either Milk of Magnesia, or Cornstarch Powder mixed to a paste by adding a little rubbing alcohol.
If you feel a pimple starting to swell up shortly before a date or important occasion, holding ice to it will take down the swelling and redness. But, ice won't make the pimple stay away forever.
See Acne to prevent pimples from forming in the first place, and for help with larger areas.