New clothes often cause skin irritation due to chemicals used in manufacturing. Dr. Shamsa Kanwal, a Portland dermatologist, says dyes-especially azo dyes on synthetics-and formaldehyde, pesticides, and fragrances are common culprits.
A 2022 Spanish study found formaldehyde in 20% of baby and maternity wear samples. Even 'organic' garments may contain irritants.
Washing reduces some risks: one cycle removed nearly all formaldehyde, according to researcher Joaquim Rovira Solano. However, flame retardants and antimicrobial treatments in activewear are designed to withstand washes.
Dr. Susan Massick advises against scratching rashes, which can worsen irritation or lead to infection. Persistent reactions warrant a dermatologist visit.
For dry-clean-only items, steaming helps with odors but not durable finishes. A barrier layer like a T-shirt is recommended.