Can large temperature differences between cold and heat cause skin allergies?

Large temperature differences between cold and hot environments may cause skin allergies, although individual reactions may vary. When the skin is frequently exposed to environments with drastic temperature changes, blood vessels rapidly dilate and constrict, leading to impaired skin barrier function. Under such circumstances, the skin becomes more susceptible to external irritants, potentially triggering allergic reactions such as redness, itching, dryness, and flaking. Additionally, temperature fluctuations can cause moisture loss from the skin, making it more sensitive and fragile.

To minimize the effects of temperature changes on the skin and prevent allergic reactions, it is recommended to maintain a stable indoor temperature and avoid frequently moving between environments with significant temperature differences. Use moisturizing creams or lotions, especially during dry or cold seasons, to strengthen the skin's barrier function and reduce sensitivity to external stimuli. Take protective measures when going outdoors, such as wearing appropriate clothing to shield the skin from extreme temperatures. After returning home, cleanse the skin promptly and apply moisturizer to replenish needed hydration. Drinking plenty of water helps maintain adequate body hydration and can improve overall skin condition. If skin symptoms persist or worsen, seek medical attention promptly.