I swear, this was given to me by a friend who raised four boys. She is chemically sensitive too. I attached the link to this guys website. The product I'm using is X-O Odor Neutralizer - natural and organic. I poor some into the wash, and wha la!!
You can also put it in a spray bottle and spray into the dryer. You can also just run through the house spraying it in the air. I sprayed it on the steaming pile of my 14-year old son's laundry sitting on the floor of his room, and it instantly took the smell away. I spray it around the cat's litter box.
She also gave me these laundry sheets that you can put in the wet laundry, and they work amazing well at getting out stains.