hi, as mentioned by you that this third session was not pretty successful. I will say, that initially the metabolism of the system allowed the flow of the plasmapheresis. From third onwards it made it little difficult for time being. Also, as in most cases it works well but for some they need additional booster. Like, physical exercise which are in general performed to help imporve the cellular mechanism. exercises improve the metabolic activity of the cellular system and allows the optimum absorption of the drug. Also while having a good absorption of the drug , there is a chance of having optimum improvements. I will advice to look for performing regular breathing exercises and general body exercises to boost the metabolism and immune system for the better absorption of the drug. I hope that your husband will surely respond to the exercises and drug later-on. you can discuss the same with the physician. with the grace of God I wish your husband a speedy recovery