I have a light version of tai chi that I do to gently stretch out my muscles and I try to walk every single day, rain or shine. When I hurt is when I need to move the most. I repeat that fact from my doctor to me on days when all I want to do is hibernate.
I did allergy shots for poison ivy. It made my reaction less spectacular. However, I still had to use prescription meds if I got exposed to poison ivy. That makes me leery of trying allergy shots for mold, fungus and spores. I am such a coward.