The sun does not help acne.
More Info: The sun has not been demonstrated to improve acne. Many acne treatments also make the skin sensitive to sunlight so it is even more important that this method of self-treatment be avoided.
“Acne FAQs.” SkinCarePhysicians.com
What Are the Health Benefits of the Sun?
The major health benefit of sun exposure is the production of Vitamin D by the skin. Vitamin D is a nutrient that is crucial for the absorption of the mineral calcium, which is necessary to maintain a healthy bone mineral density. It only takes a few minutes of sun exposure each day to produce enough Vitamin D. Both Vitamin D and calcium also have additional functions within the body. An additional health benefit of sun exposure is improvement in mood; some individuals who are deprived of sun exposure during certain seasons develop a pattern of depression called Seasonal Affective Disorder.
What Are the Health Risks of the Sun?
The primary health risks of the sun are sunburn, chronic UV damage to the skin and an increased risk of developing skin cancer. Acute doses of UV radiation from the sun can result in a painful first or second-degree burn to the skin. Over time, UV exposure can lead to skin damage such as wrinkles and sun spots, which are cosmetically unappealing. The most serious risk of sun exposure is the development of skin cancer, including squamous cell carcinoma, basal cell carcinoma and melanoma. UV radiation causes mutations in the DNA of the skin cells, which can cause skin cancer.
“Acne FAQs.” SkinCarePhysicians.com. N.p., n.d. Web. 25 July 2011. http://www.skincarephysicians.com/acnenet/faq.html#6
“Benefits of Moderate Sun Exposure—The Family Health Guide.” Health Information and Medical Information – Harvard Health Publications. N.p., n.d. Web. 1 Aug. 2011. http://www.health.harvard.edu/fhg/updates/update0604d.shtml
“Health effects of overexposure to the sun | SunWise | US EPA.” US Environmental Protection Agency. N.p., n.d. Web. 1 Aug. 2011. <http://www.epa.gov/sunwise/uvandhealth.html>