While we are in the midst of excessive summer heat and humidity, we should not forget or forgo our skin care. Dr. Vicky Ren, a dermatologist and associate professor at Baylor College of Medicine, answers summer dermatology questions that can contribute to healthy skin.
Should you wear sunscreen while indoors, even in cars?
Generally, applying broad-spectrum, SPF 30 or higher sunscreen is recommended 15 minutes before going outside, even on a cloudy day, Ren says.
"If you're indoors, next to windows or in a car, sunscreen is recommended because UVA can pass through glass," Ren said. "If skin darkening is a concern, tinted sunscreens that contain iron oxide are recommended, even indoors. Iron oxide protects against visible light, which can come from the sun as well as indoor light sources."
Some commuters may get more sun exposure on one side of their body during their drive to and from work. Ren says this can contribute to uneven sun damage. "UVA rays contribute to skin aging, skin cancer formation, and exacerbation of photosensitive conditions. If one side of your face is more directly exposed to the sunlight through a window, then that side can show more signs of aging and sun damage," said Ren.
What is the best way to treat a sunburn?
If you get a mild sunburn, treat it by washing with cool water and applying a cool, damp compress. Oatmeal baths or a moisturizer with aloe vera may provide additional symptomatic relief. Some people with sunburns get itchy, so oral antihistamines might be of some benefit.
"When your skin is sunburned, it is injured and sensitive, so we recommend a lot of the same gentle skin care measures we do for those with eczema," Ren said.
Is humidity good for your skin?
Ren says that if you are prone to dry skin and eczema, humidity can be beneficial. However, excess humidity and occlusion, which can lead to excess sweating, can contribute to acne and skin breakdown, and put you at risk of superficial bacterial and/or fungal infections.
Even in humid climates, Ren says some people can still have dry, irritated skin during the summer months. She recommends moisturizing at least twice a day.
