There are four major myths about skin care you must unlearn because they only increase breakouts and make your oily skin worse.
Myth #1: You can dry up blemishes. Water is the only thing you can “dry up,” and a blemish has nothing to do with skin being wet. Drying up the water and other moisture-binding contents in skin hurts its ability to heal and fight inflammation, and actually encourages bacterial growth. Absorbing oil that’s on the skin’s surface or in the pore is radically different from “drying up” skin with harsh ingredients.
Myth #2: Blemishes are caused by dirty skin. This mistaken belief often leads to over-cleaning of the face with soaps and strong detergent cleansers. That only increases the risk of irritation and dryness, and does nothing to prevent blemishes. It’s also the perfect recipe for creating skin that feels dry and tight underneath, but is oily on top.
Myth #3: You can spot-treat blemishes. Although you can reduce the redness and swelling of a blemish with a salicylic acid (BHA)–based product or with a benzoyl peroxide–based product (both explained below), that doesn’t treat the cause of the acne. Dealing with only the blemishes you see means you are ignoring the blemishes that are in the process of forming. As you may have guessed, this leads to a never-ending cycle of chasing blemishes around your face. Spot-treating tends to work best for those whose breakouts are infrequent and localized rather than ongoing and all over the face.
Myth #4: If it tingles it must be working. Ingredients that make your skin tingle, like alcohol, menthol, peppermint, eucalyptus, and lemon, show up in countless acne products, yet there is no research showing they have any benefit for acne or oily skin. These ingredients are irritating to skin, and only make matters worse! Irritating the skin triggers stress-sensing nerve endings at the base of the pore, which in turn stimulate oil production.
(Article taken directly from PaulasChoice.com)