This is an amazing stuff.
I love these patches so much because my skin has never healed so fast and so nicely after a pimple. I usually use one the entire night and the next morning my pimple is gone and my skin smooth. It decreases my redness, I wouldn't go out with one but if you apply make up on top it is almost unnoticeable. The different sizes are very convenient and I use all of them. Just for your information, it doesn't work on closed comedones or pimples that don't have a head. Other than that I haven't had any reaction and it never hurt when I removed them.