[header] How to shrink pimples [title] Ice the pimple. [step] Ice reduces swelling and redness in any kind of inflammation, and icing a pimple for one to two minutes can reduce both size and redness. Ice is especially helpful for shrinking cystic pimples that are deep under the skin. 
Be careful, though: applying ice directly to the skin can cause damage, especially to the face. Always insulate the ice with a thin cloth or paper towel, and do not leave the ice on for more than two minutes.