Is it safe for kids with eczema to wear new clothes without washing first?

What's actually in it

Brand-new clothes are treated with a stack of chemicals that keep them looking good on the store shelf. The list includes azo dyes, formaldehyde-based wrinkle resins, PFAS stain repellents, and biocides to prevent mold during shipping. Kids' clothes are not exempt. Darker colors carry more dye, and any label that says "wrinkle-free" or "stain-resistant" carries more finishing chemicals.

Eczema skin has a weakened barrier. Chemicals that a healthy skin tolerates without notice push an eczema-prone skin into a flare within hours.

What the research says

A 2026 study in Contact Dermatitis on repeated chemical exposure confirmed that low-dose contact with common textile allergens produces immunologically verified allergic contact dermatitis. The mechanism is simple: the immune system builds memory for the chemical, then reacts harder each time. Kids with existing eczema are primed for this cascade.

The rule is wash twice before first wear, with a fragrance-free detergent, on hot. Two washes remove most of the surface finishing chemicals. For a kid with serious eczema, stick to undyed organic cotton for the pieces that touch skin directly (undershirts, pajamas, socks, underwear). Outerwear can be anything, since it doesn't contact skin. Brands labeled OEKO-TEX Standard 100 have been tested for these chemicals and are a safer starting point.