During the CoolSculpting procedure there is very little discomfort, generally in the one hour treatment the discomfort is only in the first few minutes of the initial phase when the area is getting cold. The discomfort during and after the procedure that may be related to suction seems to depend on how thin the patient is...the less there is to draw up in to the chamber and subsequently freeze the more a person may feel it. After the procedure you may experience some bruising, swelling, a transient pins and needles sensation (like you may get when your foot falls asleep and then starts 'waking up') and some dull achiness. Patients aren't generally limited from their normal activities after the treatment as a result of discomfort. Our patients have been extremely happy with the results and none have put off a second treatment due to side effects from the first....they are not only ready and excited for their second treatments but usually add some new areas as well.
Dr. Grant Stevens
Web reference: http://www.marinaplasticsurgery.com