Here's the takeaway: The reason it works for many people is because it dries out the pimple. Here is how it might work for you. Get some plain white toothpaste, making sure it doesn't have any fluoride or whitening because those ingredients tend to burn and irritate the skin. Before placing the toothpaste, make sure your hands and face are both washed and clean. Place a small amount of the toothpaste gently on the pimple and a minor amount around it. Make sure you don't get the skin that surrounds the blemish. At first you might feel a stinging sensation but there shouldn't be any pain. If you feel more of a burning sensation remove the toothpaste immediately. Let the toothpaste dry on your skin and leave it on overnight. In the morning, gently wash it off with water.
Lo and behold...the pimple is gone pr at least less big and less red than before. This is good if you have a date, business meeting, or something important where a less obvious pimple would be ideal (ie. everything). This quick fix does not work on people with severe acne.
Note: If you are afraid of a burn, try it on a place that isn't that noticeable for 5 minutes and see if you get a reaction.