Yes its is contaminents trying to get our of your body, but there is a better way to help control it.
Drink a gallon of water throughout a 12 hour period, the blood that travels under the dermal layer will carry some contaminates away instead of popping out of your skin.
second. its very common for people to eat more once they stop smoking. So I'm going to assume your doing the same. Take a break from all variety of fried foods and drop the soda outright along with chocolate and overly sugered snacks.
This is not a miracal cure, but it will help reduce severity of outbreaks until your body is cleansed.
I also recommend scrubbing your face in small circular motions gently with soap and a coarse washrag 3 times a day.