As sunscreen ages, its sun-protection ingredients degrade, reducing its effectiveness.
防曬霜老化后，防曬成分的純度會降低，導(dǎo)致防曬效果變差。

Keeping a fresh bottle on hand, and using it every time you’re out in the sun, will keep you from getting sunburned and also help prevent skin cancer, the most common cancer of all.
準(zhǔn)備一瓶保質(zhì)期新鮮的防曬霜，每次出門有日曬時拿來用，能夠防止曬傷，還能預(yù)防最常見的癌癥皮膚癌。

If your sunblock doesn’t have an expiration date on the bottle for some reason, though, keep Dr. Shari Lipner’s advice in mind.
如果你的防曬霜不知為什么沒有保質(zhì)期，那就謹(jǐn)記莎莉?李普諾醫(yī)生的建議。

“Sunscreens are designed to last for three years,” says the assistant professor of dermatology at Cornell University’s Weill graduate school of medicine.
“防曬霜一般都有三年的保質(zhì)期，” 康奈爾大學(xué)威爾醫(yī)學(xué)院皮膚醫(yī)學(xué)科副教授莎莉?李普諾醫(yī)生指出。

“If your bottle does not have a date printed on it, write the date that you purchased it [on the bottle] and make sure to discard after three years.”
“如果防曬霜瓶子上沒有印有保質(zhì)期，那么就在這瓶防曬霜上寫上購買日期，確保滿三年后不再使用。”

She also notes that storing your sunscreen in a hot car can degrade key ingredients, causing it to become less effective. “If the consistency seems off — runny or grainy,” she advises, “discard and buy a new sunscreen.”
她還指出把防曬霜置于溫度高的車內(nèi)會破壞防曬主要成分，從而降低防曬效果。她建議，“如果防曬霜的稠度有變化——變稀或出現(xiàn)顆粒，那就扔掉再買一支新的?！?/div>

And if you do end up with a sunburn this summer, don’t freak out. There are ways to treat it and reduce its more insufferable side effects.
如果這個夏天你被曬傷了，那也別慌張，這里有一些方法能夠減輕痛苦難忍的副作用。

First, get out of the sun as soon as possible. Then, take a cool shower or bath, and apply cool compresses to any burned or red areas for 10-15 minutes, four times a day.
首先趕緊躲避日曬，然后沖一個冷水澡或洗冷水浴，緊接著在曬傷或曬紅處進(jìn)行10至15分鐘的冷敷，每天四次。

“Aloe vera and moisturizer are soothing and will help the skin heal faster,” she says. And you can take ibuprofen to help with swelling. “If it blisters, never pop the blisters. Let them heal on their own to avoid infections?！?/div>
“涂抹蘆薈和潤膚膏能緩解疼痛，幫助皮膚盡快愈合，”她說。另外，可以服用布洛芬抗腫脹?！叭绻鹆怂?，千萬不要擠破，讓它們自己慢慢愈合以免感染?！?/div>

（翻譯：紅樓里的小石頭）

聲明：本雙語文章的中文翻譯系滬江英語原創(chuàng)內(nèi)容，轉(zhuǎn)載請注明出處。中文翻譯僅代表譯者個人觀點，僅供參考。如有不妥之處，歡迎指正。

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