Just got a white linen shirt back from the dry cleaners. It has yellow sweat / anti antiperspirant stains around the arm pits. The dry cleaner said they ran it through twice but that's as good as it's going to get.

How can I get the stains out without damaging the shirt & prevent this from happening in the future?

A friend told me this occurs when antiperspirant and the chemicals from the dry cleaners mix. Not sure about that one.

Someone recommend I bleach the shirt however it's a high quality expensive shirt & the care label states do not bleach.

Thanks in advance!