Nerve damage caused by chemical spray OC/CS

How do I fix nerve damage? I was re-exposed to OC/CS at the police academy 2 yrs ago ( I’m almost 20 yrs in fyi ) my initial onset was fatigue tiredness no energy right after exposure. The next morning same symptoms with facial swelling body pain headache some clumsiness as days weeks progressed same symptoms, with forgetfulness brain fog vision changes throat itching /throat clearing. To same symptoms with anaphylactic type symptoms,left side trangeminel nerve flares, left side lower leg/foot dystonia, left dorsal nerve/rhomboid nerve burning hard to breathe at times. My quality of life has changed.nightshade vegetables cooking or decaying swells my throat. No restaurants no tourist towns just being on the highways with diesel trucks or new pavement. Wedding venues that’s empty throat swells, pesticides send me to the hospital. I have enzyme deficiencies on top of all that. I’m currently on 6 + Benadryl daily 2 Zyrtec the opened up kind, multi vitamins, omeprezole, Famotadine methylation vitamin b, zinc,vitamin d3 , magnesium, vitamin c