1. Consider Your Water 根据不同的水质，选择不同的洗面奶。
And tailor your skin-care products accordingly. “Soft water doesn’t remove soap well, so it can leave a residue on your skin,” says Susan H. Weinkle, an assistant clinical professor of dermatology at the University of South Florida, in Tampa. If your water is soft, use face and body cleansers sparingly (no more than a nickel- or quarter-size amount, respectively). Hard water, on the other hand, doesn’t allow washes to lather easily, prompting you to use even more cleanser, which can cause dryness. Gentle, nonsoap formulas, which aren’t meant to lather, can minimize this, says Carolyn Jacob, a dermatologist in Chicago.

2. Drink Green Tea 多喝绿茶，多喝凉白开。
“If your complexion is red or blotchy, this tea’s anti-inflammatory properties can be soothing,” says Andrea Cambio, a dermatologist in Cape Coral, Florida. “Iced is best because hot beverages can worsen redness and other symptoms of rosacea.” Another benefit: The epigallocatechin gallate (EGCG) in green tea may help prevent the collagen destruction that leads to wrinkles as well as sun-induced DNA damage in the skin (think lines and discoloration), according to some experts. Consider subbing tea for your morning mug of coffee.

 
3. Keep Stress in Check 要适当地减压，压力过大会使肌肤受损。
It takes a toll on nearly every part of your body, including your skin. In a study conducted at Stanford University, researchers found that during exam time, students who felt stressed had more severe acne breakouts than did those under less pressure. That’s because stress increases the body’s production of hormones such as cortisol, which can make skin oilier and decrease its ability to fight off acne-causing bacteria, says Lisa Donofrio, an associate clinical professor of dermatology at the Yale University School of Medicine. To keep that frazzled feeling under control, regularly practice stress-management techniques, like yoga, deep breathing, and meditation. This “can help conditions such as acne, psoriasis, rosacea, and seborrhea,” Donofrio says.