How long must you wear the foam sheets under garment after surgery ?

Post operative protocols will be provided to you by your PS's office; follow that advice! Plastic surgeon preferences for compression garments and length of time to wear differ. For a period of six weeks, my patients typically wear adjustable garments with multiple bands so that tension can be adjusted and the areas of liposuction are less likely to get a fluid collection. 

Thanks for your question. The amount of time varies with the surgeon. The original descriptions from Euope suggested  3 months of compression. Most American Plastic Surgeons recommend 4 weeks but I personally modify these suggestions and have patients wear the garments two weeks full time and then during the day for 4 additional weeks for a total of 6 weeks. The results are uniform and skin contours smooth with minimal inconvenience. However, you should probably discuss this with a board certified plastic surgeon when you see him or her in consultation. Hope this helps.