Don’t Sweat It
If you’re going to be outside in hot weather, you’re almost guaranteed to sweat. It’s the body’s natural cooling mechanism, after all. The problem occurs when the sweat evaporates, leaving behind trace amounts of minerals like sodium, potassium, calcium, lactic acid, urea and chromium.
These minerals at a high enough concentration can cause skin irritation, even though they’re coming out of your own body. So what can you do? Stay hydrated! The more H2O you have in your system, the more dilute those minerals will be.
Another major problem with sweat is when it pools in skin folds and causes irritation. If you know you’re going to be sweating, keep clean, dry towels on hand so you can keep problem areas — like inner elbows, backs of knees, and necks — dry.
Heat makes you itchy, plain and simple. When your body temperature increases, your blood vessels dilate, increasing speed of inflammation at your skin’s surface. So avoid getting overheated by using fans or staying indoors during the hottest, most severe weather.
Keeping your skin clean will help keep it healthy and flare-free. When you go swimming, shower soon after. If you use sunscreen, try to use brands for sensitive skin, and make sure you shower soon after you’re done in the sun. And don’t wait long to get clean again after getting good and sweaty.