#1 help was when I moved out of the toxic polluted area and as much as possible avoided chemical fumes, trigger foods, and prescription medicines (those using the CYP2D6 - especially) which caused problems. Eat organic foods, drink pure water from GLASS bottles. I found a mask that works for me (www.icanbreathe.com). Have done liver cleanses, parasite cleanses, had Amalgam removal and cavitation oral surgeries. Taken liver support supplemments, found MCS support groups and chat rooms, chiropractic (especially biocranial treatment), homeopathics, had the ELISA/ACT LRA test to see what I was reacting to so if I was reacting to something that I didn't know about I could avoid it (ie., halogenated biocides - organochlorine which according to articles Splenda makes in your body, and ethyl acetate which is used in making some vitamin E supplements and is also a food additive as well as a lacquer solvent, and carbamates - pesticides, potassium bromate - which is used in bromated flours).
The worst I got was on chemical exposures not being able to pick up my right arm nor use my right leg nor respond to questions nor hold up my head, having to use a wheelchair, walker, hospital bed and have not had to use those in over a year - because I avoid triggers; always having severe migraines, severe sinus infections, pneumonia, bronchitis, pleurisy, which I have had only one severe sinus infection and very few migraines since moving out of the polluted area; having burning eyes, bleeding nose when exposed to some fumes like from printing ink, air freshener, perfume, diesel, ammonia, chlorine.
These symptoms do still occur on chemical fume exposures (if I don't have the mask on), taking certain prescription meds, or eat the wrong foods or foods that have pesticides on them, so I guess the best thing I do for my health is avoid what triggers the symptoms. I got sick on January 12. 2000.