This is not medical advice, but I have used rapamycin for an as of yet undiagnosed autoimmune condition (likely psoriatic arthritis vs rheumatoid arthritis) and it almost completely cures the condition while taking it, at the cost of mild-moderate hair loss and acne (which recovers on cessation of the drug). I cycle on and off rapamycin every few weeks to minimize side effects and whatever unknown long-term risks.