Swelling of the upper eyelid incision may likely represent a cyst, either from a trapped suture deep in the skin or trapped epithelium under the skin. More concerning causes for this swelling may be infection / abscess or early scarring. Most expected swelling and redness after blepharoplasty usually only lasts a short period time, and 15 weeks is unusually long.
Treatment is relatively minor which may include a minor revision procedure, stab incision and drainage of fluid, antibiotics, steroid injection, warm compress, and massage. Watchful waiting is another option, depending on complete evaluation.
Speak to your plastic surgeon again, and discuss these various options.


