How Sun Exposure Affects Eczema: The Pros and Cons

Eczema, particularly atopic dermatitis, is a chronic condition that can significantly affect quality of life. Surprisingly, sun exposure plays a nuanced role in managing eczema symptoms, offering both potential benefits and risks.

In many cases, the sun can actually improve eczema symptoms. According to the Pierre Fabre Eczema Foundation, sunlight, particularly its ultraviolet (UV) rays, can reduce inflammation and alleviate skin lesions for those with atopic eczema. The sun’s ability to suppress the immune system’s overactive responses helps reduce flare-ups, leading to smoother, less irritated skin. This phenomenon is why some people find their eczema improves during the summer months. However, while the sun can provide relief for many, it can also pose risks for others.

The National Eczema Association points out that excessive sun exposure can sometimes worsen eczema symptoms. People with eczema may experience heightened skin sensitivity due to dryness or sweating in hot weather, leading to further irritation. Additionally, there’s a risk of “polymorphous light eruption” or a sun allergy, which may present itself in eczema patients. This can result in red, itchy rashes and worsening symptoms when exposed to sunlight.

The key to leveraging the sun’s benefits lies in moderation and proper skincare. Sunscreen is essential for protecting the skin from harmful UV rays, but it’s important to choose one that’s hypoallergenic and free from common irritants. Hydrating the skin before and after sun exposure is also crucial to prevent excessive dryness.