can be drained with smaller liposuction cannulas using a stair-step approach to the pocket. This allows for confirmation of what is thought to be happening. I would not recommend a long trip with an ongoing problem that isn't confirmed and managed.
Dear Sinman01You should have the seroma managed prior to travel. Discuss options with your surgeon and come up with a plan prior to your travels. In general, it is unwise to take risks with your health specially when you are away from home and away from the support of your family and the health care system you know and trust. Look for an experienced and well trained Plastic surgeon, certified by the American Board of Plastic surgery. see more than one consultation and make a well informed decision.
I am sorry to hear about the complication you are experiencing. Your intuition is correct; best not to travel far from your plastic surgeon, without undergoing revisionary surgery first. You may find, based on the description of progressive worsening of the "tightness", that swelling/pain will increase, if you do not undergo surgical evacuation of the fluid accumulation. Best wishes.
You should have this drained as soon as possible. Recommend seeking revision specialist as soon as possible. Do not recommend long flights with seroma