Eczema & Psoriasis: Tips For Choosing Allergy-Friendly Underwear
If you live with eczema or psoriasis, you'll know that the wrong underwear can turn a calm skin day into an itchy, inflamed one. The good news is that the right pieces can do the opposite, soothing and protecting reactive skin. In short: choose breathable, dye-free organic cotton and silk, avoid synthetics, latex and nickel, and look for smooth, tagless, no-dig designs.
How underwear affects eczema and psoriasis
Atopic dermatitis, the most common type of eczema, affects around 20% of UK adults and an estimated 200 million people worldwide, and psoriasis affects more than a million people in the UK. Both leave skin drier, more reactive and prone to flares. Synthetic fabrics like polyester and nylon trap heat and sweat, classic flare triggers, while dyes, finishing chemicals and detergent residues can act as irritants. The National Eczema Society recommends cotton and silk as the best fabrics for eczema-prone skin, followed by bamboo.
The best fabrics for sensitive, flare-prone skin
Organic cotton is breathable, soft and moisture-absorbing, with a low irritation risk; organic Pima cotton goes further, with long, smooth fibres grown without pesticide residues. Pure silk is naturally smooth, cool, temperature-regulating and hypoallergenic, ideal as a lining against the most delicate areas. Fabrics to avoid include polyester, nylon and elastane next to the skin, scratchy synthetic lace, exposed elastic and rough seams. For more on triggers, see our guide to allergy-friendly lingerie and common allergens.
What else to look for when choosing
- No exposed elastic: bands and straps wrapped in soft cotton avoid direct latex or elastic contact.
- Tagless, smooth seams: look for tagless printing and flat or enclosed seams.
- No nickel or metal: wire-free or fabric-wrapped designs with non-metal fastenings are gentler.
- A relaxed, non-restrictive fit: tight underwear increases friction and traps heat.
- Breathable gussets and linings: a pure silk or cotton gusset keeps skin cool and dry.
Wash and care to keep skin calm
The NHS lists soaps and detergents among common eczema triggers, so use a fragrance-free, non-bio detergent, skip fabric softener, run an extra rinse cycle, and wash new underwear before first wear.
Can your underwear worsen eczema flare-ups?
Your choice of underwear can influence how quickly eczema settles, or whether it flares. Eczema is generally a dry-skin condition that leaves the affected areas dry, itchy and scaly; in severe cases there can be weeping or crusting, and scratching can break the skin and leave it open to infection. According to the NHS, triggers can include soaps, shampoos, bubble baths and washing-up liquid, as well as dust, perfume and chemicals.
Eczema, heat and sweat
Heat is a common trigger: hot air dries the skin and brings on the itch, while sweat, especially when trapped under synthetic fabrics, draws water from already-dry skin and leaves a salty, irritating residue that can attract bacteria and worsen flare-ups. Keeping cool in breathable, natural fabrics, and changing out of damp clothes promptly, helps calm eczema-prone skin. For everyday comfort, try the soft wire-free Valentina silk and organic cotton bra or the Hope cotton and silk bralette, free from synthetic fibres, harsh dyes and residues.
Please note: gentle underwear supports comfortable skin, but it isn't a treatment. If your eczema or psoriasis is severe, weeping, infected or not improving, see your GP, pharmacist or a dermatologist.
Frequently asked questions
What is the best underwear fabric for eczema and psoriasis?
Breathable natural fibres, organic cotton with a pure silk lining, are best. They are soft, cool and moisture-wicking, and naturally hypoallergenic, unlike heat-trapping synthetics.
Can underwear really trigger a flare?
Yes. Synthetic fabrics trap heat and sweat, and dyes, finishing chemicals, latex elastic and detergent residues can all irritate reactive skin and set off the itch-scratch cycle.
What should I avoid?
Polyester, nylon and elastane next to the skin, scratchy synthetic lace, exposed elastic, rough seams, nickel fastenings, and harsh or fragranced detergents and fabric softeners.
How should I wash underwear if I have sensitive skin?
Use a fragrance-free, non-bio detergent, skip fabric softener, add an extra rinse, and always wash new pieces before the first wear.
Related reading
- What Makes Lingerie Allergy-Friendly? A Deep Dive into Materials and Allergens
- Contact Dermatitis From Clothing: Signs & Fabric Considerations
- Organic Cotton vs Bamboo vs Synthetic: Which Is Best for Sensitive Skin?
Educational content only; not a substitute for professional medical advice.
