Thanks. Seems like there is very sound evidence and science why hypercleanliness and antibiotic everything is causing such a rise in allergies in kids. So the kid's allergies are likely a result of the parents and grandparents for being too clean.
That and now forcing this extra cleanliness on other children might make them suffer later in life with additional allergies. There are even correlations in many studies between hyper hygiene and autism.
So not only is this girls "right" to be in school infringing upon the right of other kids to not have PB&J's for example, she is infringing upon their right to develop a healthy auto immune system as well.
Sorry folks, one person's health problems is not greater than the increased risk factor for all kids in the school.
She should be taken out of school and home schooled. Or, sent to school in a body bubble as another person noted earlier. Or at least wearing a gas mask. No matter what, she is going to suffer social interaction in life regardless of what is done. So why make everyone suffer for just one kid?