20 Unexpected Culprits Provoking Your Atopic Dermatitis Flare-Ups

13. Nail Polish and Removers

You might think your atopic dermatitis only flares on your arms or face, but your manicure could be the real offender. Many nail polishes contain formaldehyde, toluene, and dibutyl phthalate—all known skin irritants. Add to that harsh acetone-based removers, and you’ve got a recipe for flare-ups around the nails, face, or anywhere hands frequently touch. Even "non-toxic" formulas can provoke reactions. Look for hypoallergenic nail products, or better yet, take breaks between manicures to let your skin breathe. If flare-ups tend to follow spa days, this under-the-radar trigger could be the one you’re overlooking.

14. Cold, Dry Air

While heat and sweat get a lot of attention, cold air deserves its share of the blame. Winter air is drier, and indoor heating makes it worse—pulling moisture out of your skin and worsening inflammation. For many with atopic dermatitis, flare-ups peak during cold months. The solution? Use a humidifier in your bedroom, avoid overly hot showers, and double down on rich, emollient moisturizers. Layering your skincare (like adding a barrier cream over a lotion) can help lock in moisture. And remember: lip balm isn’t just for your lips—dry eyelids and cheeks may need a similar seal.