Detailed answer

Air pollution contains harmful particles and chemicals that can penetrate the skin and trigger oxidative stress, inflammation, and irritation. These pollutants can disrupt the skin's barrier function and deplete its natural moisture, leading to increased dryness and sensitivity. Additionally, air pollution can also stimulate the production of free radicals in the skin, which can further aggravate eczema symptoms and contribute to skin damage. People with facial eczema should take extra precautions to protect their skin from air pollution by using a barrier cream or moisturizer, avoiding heavily polluted areas, and cleansing the face thoroughly to remove pollutants.