Is it advisable to use an ice pack belt after CoolSculpting to enhance results? And if so, how long after can i start?

I would not recommend using an ice pack belt after a CoolSculpting treatment.  The additional cooling could potentially harm the skin and I am not aware of any studies showing that an ice pack belt positively enhances results.  Multiple CoolSculpting sessions can enhance results, so I would recommend waiting 12 weeks after your first session and if you would then like improved results, a second treatment could be done.  

An ice belt would not have the same outcome as CoolSculpting and could posswibly damage your skin. CoolSculpting has thermal monitoring within each applictor and if it is off even by a degree, it will stop treatment and alert the CoolSculpting technician.There is also a gel pad that protects the skin from frostbite.