A Proactive Skin Care helps heal your existing acne and helps prevent new blemishes. All acne begins with one basic cause: the comedo, an enlarged hair follicle plugged with oil, bacteria and dead skin cells. Invisible to the naked eye, the comedo is beneath the surface of your skin waiting for the right conditions to grow into an inflamed lesion. As the skin continues to produce more oil, bacteria grow within the swollen follicle. The surrounding skin becomes inflamed as your white blood cells fight against the intruders. Acne can't be cured, with or without a prescription. Even after blemishes disappear, you must continue to use a proactive acne treatment to keep new blemishes from forming. Though all pimples start the same way, they can take many forms and may react differently for different people. The most important proactive skin care product is Proactiv Solution by Guthy-Renker. Their expert dermatologists have created a breakthrough way to treat acne safely and effectively. Combination Therapy uses several different medicines in one system to heal the blemishes you have now and help keep new ones from forming.