Another good reason to take to the laundry room and toss right into the washer for a good pre-washing. Mine recently purchased fabric goes straight to the washer. Does not meet up with my other prewashed fabric til done. Any sizing in the fabric or whatever it's made of can be an allergen. How often do you think that fabric rolls around on the floor before the stores get it? How often have you gone into a store and see fabric laying on the floor and people walk right by it. Anyone know how many people walk on those floors before they get mopped/cleaned? Some allergens will trigger a migraine and I'm done for atleast 2 days in bed and weak the rest of the week. If it still smells coming out of the washer or dryer wash again. New fabric get the ammonia, Dawn dish detergent and Arm and Hammer washing soda/flakes treatment before it meets my other fabric. Sometimes twice.