Washing powder allergic reation

[nzoomed]

Where did you get the clothing from that is causing the skin reaction? Did the issue start from when you first got the shirt and are any other clothing items (particularly undergarments, underwear) from the same wash having this effect?

I'm suspecting that if it is just the one item of clothing that you may be reacting to formaldehyde which is commonly used to dress clothing and fabric to prevent creasing. Washing does not remove this as it is actually embedded in the fibres. I have a Swandri fleece jacket that offgassed when new and gave me asthma like breathing issues. The effect remains many years and dozens of washings further on if I get hot and sweaty when wearing it. Sensitivity to this toxic chemical used in textiles and household goods including carpets and laminates is all too common but is largely ignored by our health sector.

We sell clothing and fabrics with robust certifications regarding its freedom from manufacturing residues and other contaminants and we have regular clients that purchase our products due to their suffering ill effects from environmental toxins which often includes allergic reactions to fabric/clothing dressings.

Yes good advice.
Also it's a good idea to wash any new clothing before use.
I've had a little rash after wearing a new t-shirt once.
There is little regulation around what chemicals in the dye are used in the likes of China and other countries that produce our clothing.
It pays to shop around if you feel you have an allergy.