Eye bags appear after ThermiSmooth: Is this inflammation or water retention? (Photo)

I had thermi smooth yesterday, and I saw redness and swelling under my eyes. I was told that is normal and will be gone in several hours. I found it gets worse in the evening and today there are two big eye bags appear under my eyes. I was told it is safe and no downtime. Is this inflammation or water retention caused by RF? Any way to get rid of the eye bags? My low eyelids are very tight and almost no eye bags before the treatment.