Anyways what you do is you take your mask base, I sometimes use yogurt or whatever creamy mask I have lying around.
Crush four uncoated Asprin (make sure you aren't allergic), I use a pestle and mortar, and then put in a few drops of water and kinda stir it.
Then scoop the mask on, about 3/4 of a tablespoon, depending on how big your face is (? i guess) and blend it all together.
Spread on, and let it dry.
It really helps with swelling, and it gently exfoliates you skin as well.
My skin is more calm, less red and just more even toned all around. It also gets rid of the morning puffiness from if you do it in the AM.
you should moisturize after though, because it can be drying sometimes.