I haven't read other posts but I can tell you it's impossible.
I've done everything you can think of to get it out.
It's actually formaldehyde. It's used in a lot of things.
You'll think you got it out and then when the garment gets soaked it will come back (smell) some.
I just received 2 or 3 pair of jeans and the smell was so bad I didn't even open the package. I don't even know how many were in the package.
I put them (plastic and all) back into a big box with some other terrible smelling things from QVC and I'm mailing the entire thing back to them.
I've tried over and over in the past year to get that smell out.
I have friends who used to work in fabric stores. Way back maybe 2 or 3 years ago they used to tell me how they'd feel dizzy being around the material after awhile.
That was when it wasn't as strong as it is these days.
I'm convinced that's one of the MANY reasons people are coming down with cancer.
It absolutely cannot be good to wear and inhale that terrible smell.
I had a mattress I bought from QVC before I bought the sleep number bed.
I have a terrible habit of falling asleep with bottled water in the bed. The water turned over in the night and soaked the bed.
No matter what I did I could not get that smell out of the mattress. Evidently, the soaking of the mattress caused the smell to come back up in the mattress.
Sometimes we/you/I/us (everyone) can smell it and sometimes we can't but it's almost always there.