7 weeks post op of Liposuction, now I have loose skin. Will this go away?

I agree with what was said below, the tightening of the skin is unpredictable.  If the doctor thought you would tighten, that may still be the case as this can happen up to 6 months later.  If there is still looseness after 3-6 months you may want to consider skin removal (tummy tuck) or external skin tightening devices such as radiofrequency or ultrasound treatments.  Best, Dr. Emer.

It is impossible to give an accurate opinion without at least photos. Generally speaking, the ability of the skin to contract--is unpredictable. I continue to be surprised at the amount of skin that is removed with abdominoplasty (Tummy Tuck). Therefore, I generally advise patients who seek lipo only of the abdomen-- they may want or need skin excision at some future date.