Exercising After Smart Lipo

I am 8 days after Smart Lipo on my upper and lower abdominals. I have swelling etc. (as everyone else does). However, my doctor has instructed me not to exercise at all - including no walking. (Although he did recommend the ultrasound twice a week for a total of six treatments).

It was explained that exercise will cause the swelling to harden and then make it longer and more difficult to reduce. My logic was to begin exercise in order to bring more blood flow to the area and thereby reduce the swelling quicker.

Am I wrong or is my doctor just hoping I'll purchase the additional treatments? And if so, are the treatments worth it or should I just wait out the swelling? Thanks.