Why didn't the swelling under my eyes, that occurred the day after ematrix procedure go away. (photos)

I had a ematrix procedure at a laser school. It was done with close supervision. They used a lower setting because it was a school. They lasered my face and under both eyes. The next day there was swelling right below the bags under my eyes. That has not gone away 4 months later. They thought it was allergy related. The bags under my eyes were there previously, but not the swelling under the bags. Why didn't the swelling go away? What can I do?