I have seen it once in the last 8 years. The only way to avoid the risk is to not have the procedure - blunt but accurate information. It all depends on how you would cope should you get the reaction. If this is totally unacceptable to you , then don't do it. But you have an extremely high...
This should be not occurring at this time. I think you should have this evaluated medically hopefully by the clinic that treated you to rule out possibilities of infection vs other medical reasons.
You should not have cryolypolysis. It is unlikely to be effective, and may have significant risks for you, such as infection or tissue necrosis.
Liposuction by an expert in lymphoedema may be better.
Regards, Dr Steve Merten, Sydney