What works for me is getting IVIG regularly. My neurologist, who has a splendid reputation and specializes in CIDP, says off and on treatment is worthless. It wears off quickly and you’re right back where you started. Don’t hesitate to insist on regular infusions that will keep the level in your body steady long enough for it to do you some good. It’s not a short term medication like an antibiotic. It’s meant to be taken long term and regularly. .