Protect your skin. Skin care doesn't end when you leave your bathroom. Wear a noncomedogenic (non-pore clogging) sunscreen with an SPF of 30 or more that offers both UVA and UVB protection to shield your sensitive skin against the sun's harsh rays. A water- or light liquid-based sunscreen is best for acne-prone skin. Limit your time in the sun, especially between the hours of 10 a.m. and 2 p.m. While outside, wear a hat with at least a 2-inch brim and clothing to cover exposed skin.
Glycolic acid is another chemical exfoliant that dissolves the structural lipids that hold dead skin cells and bind them to the surface. But aside from this, studies have also shown that glycolic acid effectively encourages and stimulates the production of collagen and elastin, restoring damaged skin faster and reducing signs of environmental damage with continuous use.
What it is: Originally under the brand name "Accutane" but now available only in generic form, isotretinoin is a derivative of vitamin A taken in pill form for 15-20 weeks. Doctors normally prescribe it for people with "severe nodular acne" that does not respond to other treatments. Nodules are inflammatory lesions with a diameter of 5mm or more. A single course of 15-20 weeks has been shown to result in complete clearing and long-term remission of acne in many people.1-2 Learn more on the Accutane page of acne.org.
Antibiotics. These work by killing excess skin bacteria and reducing redness. For the first few months of treatment, you may use both a retinoid and an antibiotic, with the antibiotic applied in the morning and the retinoid in the evening. The antibiotics are often combined with benzoyl peroxide to reduce the likelihood of developing antibiotic resistance. Examples include clindamycin with benzoyl peroxide (Benzaclin, Duac, Acanya) and erythromycin with benzoyl peroxide (Benzamycin). Topical antibiotics alone aren't recommended.