We found the most helpful solutions for my son were to ma...
We found the most helpful solutions for my son were to make minor adjustments in the house and his environment, but most importantly to change his diet to build up the right nutritional stores to help him improve his immune system to cope better with his environment as it existed.
For example, we found that if my son had a hot dog at lunch with nitrites, and then was exposed to car and bus fumes coming home from school, he would get sick from the exhaust fumes. However, when he stopped eating cafeteria food and started taking his lunch with nutrient (especially magnesium) rich foods without preservatives, then the car fumes from the line of cars in the passenger loading zones at his school would not bother him.
I suspect that the nitrite and other chemicals in the cafeteria lunches were using up some of his store of minerals and vitamins used to detoxify both nitrites and car fumes. So by not expending his nutrient stores to detoxify the preservatives from the cafeteria lunches at school, he then was better able to cope with other toxic substances he was exposed to such as car fumes.