TRENDING NOW - The ABC's Of Sunscreen

By CNN

Published 05/27 2014 08:27AM

Updated 05/27 2014 08:31AM

Did you get a little sunburn over memorial day weekend? It's easy to get burned, especially when there are so many labels of sunscreen to choose from and so much differing advice on how to best use it. Even the most diligent sunscreen users among us might be doing it all wrong.

Health.com says 3.5 million cases of skin cancer are diagnosed every year.

So to avoid the burn, they recommend:

First -- find the right sunscreen. SPF 15 blocks 93-percent of UVB rays. SPF 30 blocks 97-percent and SPF 50 blocks 98-percent.

You should also remember to look for the words, "Broad Spectrum Protection" on the label. This will protect against UVA rays which cause cancer and wrinkles and UVB -- those cause sunburns.

Next -- apply every two hours and after a swim -- yes, even if the label says the sunscreen is water resistant.

Apply generously -- experts say that almost no one applies enough sunscreen. Most only rub on about one-fourth of what's needed. You should apply two coats in as meticulous a fashion as possible. And don't forget your nose! Experts say this is one of the most commonly missed areas of the body and where 80-percent of skin cancers are removed.

Lastly -- toss out old sunscreen. It starts to lose its effectiveness after three years.

Now, sun protection is not only about using sunscreen. Experts also advise wearing a hat, protective clothing, and not going out into the sun at it's strongest -- during the middle of the day.

All good tips as we head into summer.

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