NEWS BRIEF: Does air pollution cause eczema?

Eczema is an inflammatory common skin condition, like psoriasis (see page 3), and it affects more than 31 million Americans. Plus, its incidence has increased dramatically since the 1970s, growing by 200 to 300 percent in industrialized countries.

We know the condition almost always starts in childhood. And common allergens, such as pets, perfumes, dyes, and foods, can exacerbate the condition. But the exact cause has long puzzled scientists…

Until now, that is.

A group of scientists with the National Institutes of Health recently looked at eczema “hot spots” around the country and studied toxins in the environment.1 It turns out, in places where lots of people suffer from eczema, there are high environmental levels of chemicals called diisocyanates and isocyanates.

Manufacturers use diisocyanates to make polyurethane products, including adhesives, flexible foams, carpeting, and fabrics. And isocyanates come from a completely different place… car and vehicle emissions.

But, together, they pollute the environment and may trigger eczema. In fact, according to the study’s lead researcher, “We have solid data establishing that pollutants are very likely behind increasing rates of [eczema].” And that’s about as close to a smoking gun we will ever get in the scientific world.

Of course, there’s not much you can do to completely avoid car exhaust. (Especially if you’re a New Yorker, like me.)

But avoiding the use of polyurethane products is within your control. Opt for organic or natural fibers and materials in your home and office. Stay away from plastics and other manufactured products. Keep your windows open as much as possible. And use an air filter in your living environments—preferably one that’s HEPA-based. (You can even pack a travel-sized air filter when you’re on the go, which is what I do.)

Reference:

“Eczema’s cause could be in the air we breathe.” NBC News, 3/26/23. (nbcnews.com/health/health-news/causes-eczema-air-breathe-new-science-suggests-rcna76427)