Hi I am new to this site, I only wish I knew about this three and a half years ago when my daughter was first diagnosed with SCLS. She has had treatment with Prednisone initially, however, I learned about all the side effects of this and asked her doctors if there were any other options and she has been treated successfully for the last two and a half years or so with IVIG. Our story is very similar to yours, she had recurrent episodes of edema and such, that we were told were viral or they would just go away, we were told for months that the swelling was due to allergies but come to find out that was not the case. So here we are 4 years later. We will keep you posted on her progress. Hope you do well.