Having done a fair number of these procedures in my practice, I can say with good certainty that the amount of swelling I see in the photo is not at all unusual. Swelling will vary from patient to patient depending on the internal temperature used, the amount of time spent treating the area, and the tissue layers that are treated. Treating just below the skin's surface (sub-dermal) does not typically result in much swelling. However, when the subcutaneous fat layer is also treated, it is fairly common to have some firm swelling in the area for up to 2 months. If the deep layer of fat is treated (under the platysma muscle) then swelling can be slightly longer in duration. I have found that circular massage is the most helpful maneuver for speeding resolution. If you develop a hard knot, your doctor may also consider injecting a dilute steroid to aid the process.