Swellingoften persists for up to three months. The majority goes down within the first couple weeks, but changescontinue to occur typically for around 12 weeks. I tend to keep some form of compression for2-3 weeks.
Fortunately most of the swelling is gone in the first 3-4 months. The remaining swelling can take up to 12 months to fully resolve. Complete healing of the scar however can take longer. Most brachioplasty scars continue to improve for up to 2 years. It is ideal to continue compression of the upper arms for up to 6 weeks following the procedure. Many patients prefer the sleeves worn by athletes that extend from the wrist up to the shoulder. They're comfortable and not apparent under most clothing. Good luck