At some point he said ’fuck it, if I going to die it’s going to be in the sun’ (he lived in cold Canada.)
He went to Mexico and completely recover without any drugs, eating anything he wanted. I later found there is a strong connection with vitamin D deficiency and autoimmune diseases.
Look into functional medicine if you haven’t, basically the idea of giving what a normal body need to function properly ( good food, sleep, friends, family, sun, etc, probiotics) and mostly get out of the way.