Kybella: 3 months later, and still swollen from baseline. Have you seen this? What are my options?

Hello. I just had my Kybella 3 month follow up appointment. My chin is still swollen and twice as large from baseline. I'm a thin person and had a very small treatment area. I had less than one vial injected. My doctor acknowledged it and said this is the longest they'd ever seen Kybella swelling last and to give it a couple more months. They had no advice as to improve my condition. Have any of you experienced this in your patients and do you have suggestions? Could this last forever? Regretful