How to Prep New Clothes Before Wearing: Avoiding Contact Dermatitis for Eczema-Prone Skin

Step 1: Do not wear before washing

This sounds obvious, but it is the step most families skip when they are excited about a new eczema-safe clothing purchase or when a child is desperately asking to wear a birthday present. Even clothing certified to eczema-safe standards requires washing before first wear. The certification confirms that the fabric has been manufactured without harmful substances, not that manufacturing residues are absent from the finished surface of the garment.

Step 2: Wash with your established eczema-safe detergent

Use the same fragrance-free, enzyme-free, optical-brightener-free detergent you use for all your eczema family member’s laundry. Do not introduce a new detergent for the first wash of new clothing. If the clothing reacts, you want to know whether it is the clothing or the detergent, not both variables changed at once.

Use half the recommended dose of detergent, as discussed in the laundry mistakes post: excess detergent leaves residue of its own. Wash at the temperature appropriate for the fabric, typically 30 to 40 degrees Celsius for bamboo and delicate natural fibres.

Step 3: Always run an extra rinse cycle

The extra rinse cycle removes both the manufacturing residues that the detergent has loosened and any detergent residue from the wash itself. This is the single most important step and applies to every wash of eczema clothing, new or otherwise.

Step 4: How many washes before first wear?

For most children with mild to moderate eczema: two washes before first wear is a reasonable baseline. The first wash removes the majority of surface manufacturing residues. The second wash removes what the first loosened but did not fully rinse away, and removes any detergent residue from the first wash.

For children with moderate to severe eczema, or children who have previously reacted to new clothing despite washing: three washes before first wear. Some dermatologists advise up to five washes for children with highly reactive skin, particularly for items that will be worn against inflamed skin overnight.

After the correct number of washes, line dry or tumble dry on low. Do not use a dryer sheet or fabric softener at any stage.

Step 5: Patch test before full wear

For a child with reactive eczema, even after the correct number of washes, a patch test before full overnight wear provides an additional safeguard. Put the washed garment on the child for two to four hours during the day while you can observe their skin. Check the areas of most contact (inner elbows, back of knees, neck, wrists) for redness or increased itching. If no reaction occurs over two to four hours, the garment is likely safe for overnight use.

This step is particularly worth doing when introducing clothing from a new brand or a new fabric type, even within the same category of natural fibres.

Gift clothing

Gift clothing for a child with eczema requires the same preparation process regardless of how thoughtfully it was chosen. Well-meaning family members and friends cannot know the exact manufacturing processes used in any specific garment, even if they have selected something labelled ‘natural’ or ‘organic’.

The practical approach: receive the gift graciously, do not dress the child in it immediately (even if they want to), and put it straight into the laundry for the two-wash preparation process. If the question arises, a simple explanation, that all new clothing needs washing before your child can wear it, is accurate and non-critical.

For families who regularly receive clothing gifts for a child with eczema, it can be worth sharing this information once with regular gift-givers, that you always wash new clothes before first wear, so the delay between receiving and wearing is not misread as ingratitude.

Secondhand and pre-loved clothing

Secondhand clothing is a more complicated case. Well-washed secondhand clothing from a household that uses fragrance-free, eczema-safe laundry products may be safer for eczema-prone skin than new clothing from a manufacturing facility. The manufacturing chemicals in secondhand clothing have typically been washed out through repeated laundering by the previous owner.

The risk with secondhand clothing comes from the previous owner’s laundry products. If the previous household used fabric softener, scented detergent, or optical-brightener-containing products, these compounds can be embedded in the fabric fibres. They do not always wash out completely even with a new laundry routine.

For eczema families using secondhand clothing:

• Wash three to five times before first wear, using your eczema-safe detergent and extra rinse cycle
• Be aware that some fragrance compounds from scented laundry products are hydrophobic and resist water-based washing; if a persistent fragrance remains after three washes, the garment may not be appropriate for eczema-prone skin
• Secondhand bamboo clothing specifically may have lost some of its original properties if the previous owner washed it in hot water repeatedly or used fabric softener, which coats bamboo fibres and reduces their moisture-wicking ability

When a reaction still occurs after preparation

If a rash develops after wearing a correctly prepared new garment, the reaction is providing useful diagnostic information. Look at the pattern:

• If the rash maps to where the fabric was in contact with skin, this is contact dermatitis from the garment itself. Possible causes include residual dye, the specific fibre content, seam construction that causes friction, or elastic compounds at the waistband or wrists.
• If the rash is generalised rather than contact-pattern, the cause is less likely to be the specific garment and more likely to be the detergent, a coincidental flare triggered by other factors, or an environmental cause unrelated to the clothing change.
• Keep a brief symptom diary for new clothing introductions: what was worn, when the reaction appeared, where on the body. This information is useful for both identifying the trigger and communicating with a GP or dermatologist.

For guidance on distinguishing contact dermatitis from eczema flares and heat rash, see eczema or heat rash? how to tell the difference, which covers the pattern-based identification that makes contact dermatitis diagnosable from observation.

The amount of preparation required is partly a function of the clothing itself. Some purchasing choices reduce the starting residue load significantly.

• OEKO-TEX Standard 100 certified: every component of the garment, including threads, buttons, and zips, has been tested for harmful substances including formaldehyde, azo dyes, and heavy metals. While pre-washing is still recommended, the baseline residue level is substantially lower than in non-certified garments.
• GOTS (Global Organic Textile Standard) certified: covers the full supply chain from raw fibre to finished garment, including restrictions on processing chemicals at every stage. The most comprehensive certification available for textile safety.
• Undyed or naturally coloured: garments in natural cream, oatmeal, or light grey avoid synthetic dye compounds entirely, removing the azo dye risk category.
• Plain weaves without special finishes: garments with no ‘easy care’, ‘non-iron’, or ‘permanent press’ labelling have not been treated with formaldehyde-based wrinkle resistance compounds.

The Bamboo Bubby by Nella Vosk eczema clothing range is made from OEKO-TEX certified bamboo-organic cotton blend, designed from the ground up for eczema-prone skin. Explore the eczema clothing range for kids for clothing that starts with a lower residue baseline, while still requiring the preparation steps above before first wear.

Before any new garment touches eczema-prone skin:

• Do not wear straight from the packet or bag
• Wash minimum twice (three to five times for severe eczema or secondhand clothing)
• Use your established eczema-safe detergent at half dose
• Run an extra rinse cycle on every wash
• No fabric softener at any stage
• Wash at the correct temperature for the fabric (30–40°C for bamboo and delicate natural fibres)
• Line dry or tumble dry on low; no dryer sheets
• Patch test for two to four hours before overnight or all-day wear
• Keep a note of any reactions with pattern, timing, and garment details

Preparing new clothing before first wear takes one to two weeks if you start the washing process as soon as the garment arrives. Building this into your routine as a non-negotiable step, not something done only when you remember, is one of the simplest and most impactful ways to prevent the pattern of eczema reactions that parents often attribute to the wrong cause.

Return to the complete guide to eczema-friendly clothing for the full framework covering fabric, fit, and environmental choices that support eczema-prone skin.

Also in this cluster:

• Baby clothing irritants: hidden triggers and safe choices — what the manufacturing chemicals in new clothing actually are and how to identify safer options
• Laundry mistakes every eczema parent makes (but can easily fix) — the ongoing laundry practices that should follow the preparation washes for new clothing
• How to wash clothes for eczema: step-by-step guide — the complete washing technique that applies to preparation washes and regular laundry
• Fabric softener and eczema: what parents need to know — why fabric softener must never be used at any stage of the preparation process
• Eczema or heat rash? how to tell the difference — identifying whether a reaction to new clothing is contact dermatitis or a coincidental eczema flare
• Best laundry detergent for eczema in Australia — which specific Australian detergents to use for the preparation washes and ongoing eczema laundry

The Bamboo Bubby by Nella Vosk eczema clothing range for kids and bamboo eczema clothing collection are made from OEKO-TEX certified bamboo-organic cotton, starting with fewer manufacturing residues than conventional clothing — and still need the preparation process above before first wear.