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How does sun exposure affect acne?

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The sun's ultraviolet rays can increase inflammation and redness, and can cause post-inflammatory hyperpigmentation (dark discoloration). Some acne medications may make your skin more sensitive to sunlight. Limit your time in the sun, especially between the hours of 10 a.m. and 4 p.m., and wear protective clothing, such as a long-sleeved shirt, pants, and a broad-brimmed hat. Whether you have pimples or not, always apply a broad-spectrum sunscreen with 6% zinc oxide or higher and  SPF 30 or higher at least 20 minutes before sun exposure. Look for "noncomedogenic" on the sunscreen label to make new pimples less likely. Read the ingredients on the product label to know what you're putting on your skin.

From: 10 Tips for Preventing Acne WebMD Medical Reference

SOURCES: 

Stathakis. V. 1997. Australasian Journal of Dermatology,

Nguyen, Q. 1994. American Family Physician,

Chiu, A. 2003. Archives of Dermatology,

Teenagers Today.com web site: "Best Face Forward." 

About.com web site: "Acne ... Pimples ... and Zits, Oh My!"

FDA.

Reviewed by Stephanie S. Gardner on September 12, 2018

SOURCES: 

Stathakis. V. 1997. Australasian Journal of Dermatology,

Nguyen, Q. 1994. American Family Physician,

Chiu, A. 2003. Archives of Dermatology,

Teenagers Today.com web site: "Best Face Forward." 

About.com web site: "Acne ... Pimples ... and Zits, Oh My!"

FDA.

Reviewed by Stephanie S. Gardner on September 12, 2018

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Does what you eat and drink cause acne?

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