I got Brazilian blowout done to my hair. I was given a mask so I could be protected against the fumes. Can I get any long term illness from doing this?

Yes you can. The brazilian blowout exposes you to formaldehyde, a known carcinogen. The fda chastised the company for misbranding products containing deleterious substances. Some lawsuits have been settled in ca over this: http://www.Womensvoices.Org/2012/02/01/toxic-hair-treatments-lawsuits-settled-on-brazilian-blowout-california-attorney-general-suit-forces-hazard-warning/ i suggest steering clear.