Hi, I had Methyll Predinose and had absolutely no reaction. I did 5 consecutive days of IVIg followed by two infusions the following week. . Then 2 consecutive days monthly for 3 months but found this knocked me around too much. I have changed to fortnightly and feel I am getting a good result from IVIg. My consultant has said that different people get different reactions. It is still early in my treatment but seeing positive results.