One comment quoted here:

I have MS. I spend hundreds of dollars of month on drugs. I take a medication that is supposed to reduce relapses by 30% that can only be administered by injection. The injections are very painful and cause large lumps under my skin and joint pain. One of the possible side effects of this medication is cancer. I have been given so many prescriptions and I have so many drugs in my system and each one has very unpleasant side effects. My drugs make me feel worse than MS does. There may be a drug free way to reduce my symptoms but I cannot access it because in the end - an angioplasty may be too risky. Under the circumstances I am willing to take that chance.