Symptoms: A cluster of red or white miliaria, small pus-filled bumps typically found on the cheeks, forehead and chin. These bumps are clogged pores -- the result of crystallized (dried) sweat trapped under the skin.
Treat it: Get out of the heat. Then cleanse, dry and pat your skin with baby powder to soothe the zone. After a few minutes, apply an over-the-counter cortisone or anti-itch cream, like Aveeno 1 Percent Hydrocortisone Anti-itch Cream, $5.99, to reduce inflammation and redness. Reapply every three hours as needed.
Prevent it: Stay in cool, dry, air-conditioned environments as much as possible. When outside in the heat, cleanse skin immediately after sweating. Carry disposable wipes when you're on the go to sweep sweat off your face and other rash-prone zones And finally, avoid oil-based products, says Frew. Photo: Courtesy of y2khealthanddetox.com

Symptoms: Red, chafed skin with a burning sensation. It's usually the combination of cold and sunburn (think skiers at high altitudes).
Treat it: Cleanse and dry skin, then combine one dime-sized drop each of moisturizer with over-the-counter cortisone cream (like Cortaid Maximum Strength Anti-itch Cream, $5.49). This mixture calms irritation and reduces redness. Reapply every four or five hours as needed for up to one week only. Between applications, use an aloe-based, cooling moisturizer (like Kiss My Face Olive and Aloe Fragrance Free Moisturizer, $10.95). Downie suggests doing a patch text first as some people can be allergic to aloe.
Prevent it: Whether you're hitting the slopes or heading outdoors during a blustery, clear day, use a heavy-duty dry skin lotion with a high SPF (like Eucerin Extra Protective Moisture Lotion, SPF 30, $8.59) to keep skin hydrated and protected.