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Published on: 7/1/2001
Last Visited: 2/20/2002
Mariano Busso, MD
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MARIANO BUSSO, MD: There are two parts to sunlight, visible and invisible.The invisible form has the ultraviolet light type A and type B, which are our major concern.What they can produce is suntan, sunburn, skin cancer, premature aging, eye damage like cataracts, damage to the immune system, and even allergic reactions.
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MARIANO BUSSO, MD: UVB is filtered by windows, whereas UVA not as much.Most skin cancer takes place on the left side of our body, because when we're driving, we have a lot of sun radiation from UVA rays.In Great Britain, most cancers appear on the right side.
What's the best way to protect ourselves from burning?MARIANO BUSSO, MD: Nothing is more important than avoiding the sun.Sunscreen is never going to be as good as sun avoidance.And be aware of reflective surfaces, like sand, water and snow.
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MARIANO BUSSO, MD: There are three basic properties that you should look for in a sunscreen.It should be an SPF of 15 or more; 30 is good enough, but more than 30 really doesn't add much.Second, it has to be a broad spectrum, to protect from UVA sun exposure and UVB ultraviolet light.And also get sunscreens that are waterproof.If you're out in the sun sweating and swimming, it doesn't run off as easily.You still have to reapply a waterproof sunscreen every two or three hours, but you're going to get a lot more protection with a waterproof sunscreen.
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MARIANO BUSSO, MD: PABA was one of the first chemicals used that offered protection against the sun, but it can cause allergic reactions.Therefore many sunscreens do not contain PABA as their photo-protection chemical.
In general, alcohol-based sunscreens tend to irritate the skin a little more, so some people develop an irritation not from the chemicals, but from the alcohol.A simple way to determine whether you are allergic to your sunscreen is to apply the sunscreen on the flexure of your elbow, twice a day for a week; if you don't develop an allergic reaction, then you can safely apply it on the face.
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MARIANO BUSSO, MD: Also anyone can wear protective clothing, like a wide brimmed hat and long sleeves.The color and texture of the clothes doesn't matter, but it has to be tightly woven cloth.If you take a look at the sun through the cloth, you should not see it; if you see it, it's not protecting you.
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Mariano Busso, MD
University of Miami
Dr. Mariano Busso is a Clinical Instructor of Dermatology at the University of Miami in Miami, Florida and also maintains a busy private practice.He is board-certified in dermatology by the American Board of Dermatology.
Dr. Busso received his medical degree from the University of Buenos Aires School of Medicine in Argentina.He then completed an internship in internal medicine and a fellowship in dermatology, also at the University of Buenos Aires.On moving to the United States, Dr. Busso completed an internship in general surgery at the Mount Sinai Medical Center in Miami, Florida.He then went on to do a second residency in dermatology at the University of Miami.
Dr. Busso has published a number of papers in peer-reviewed journals.He has been awarded the Upjohn Research Award at the Department of Dermatology of the University of Miami and the George Iaonnides Teaching Award at the Department of Dermatology of the University of Miami.
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Suncare 101
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Suncare 101
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