“Phototherapy, a commonly used treatment for eczema, involves exposure to certain safe wavelengths of light that are emitted by the sun,” Cohen says. ![]() Phototherapy or light therapy is used for this very purpose. This makes sense, Cohen explains, because sun exposure may decrease the inflammatory mechanism behind eczema flare-ups. The last time you were out in the sun, you may have found that your atopic dermatitis improved. RELATED: 10 Sun-Care Products That Dermatologists Love Cohen says that sunburns in general accelerate skin aging, increase the risk of skin cancer, and increase skin dryness. A study published in December 2019 in the Journal of the Mechanical Behavior of Biomedical Materials found that UV light weakens the bonds between cells in the stratum corneum, the top layer of skin, by damaging the proteins that help skin cells adhere together. While the sunscreen itself doesn’t directly strengthen the skin barrier, it will protect your skin from the sun. Regularly using sunscreen can help prevent this from occurring,” says Jeffrey Cohen, MD, a board-certified dermatologist and an assistant professor of dermatology at Yale University in New Haven, Connecticut. ![]() “Sunburns compromise the skin barrier, which is already compromised in people with eczema, and can lead to flares. After all, excessive sun exposure can lead to sunburn in anyone, including people with atopic dermatitis. Your quest to find an eczema-friendly sunscreen is worthwhile.
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