There is a link to an interesting map of the face -- sort of like in reflexology, where areas of the feet are connected to other body organs and areas, the face map shows the correlation according to Chinese medicine between facial areas and organs. Chin is kidney and bladder, so it may be your breakouts with OP were related to those organs not being able to properly do their job so toxins exited through the skin again.
I have found this to be really interesting and when I break out, it's often in a corresponding area to where I have internal troubles.
Always important to drink water with a little salt if you can, and the goal is to drink your body weight/2 in ounces per day.