This being your second procedure, your lymphatics, those vessels that drain the abdominal wall, may be buried in scar tissue or have been inadvertently injured during the second surgery. This can lead to a much slower resolution of swelling. Even at 4 months, I would wear a...
This is a recognizable complication after drain removal and usually resolves on its own in a matter of three or four weeks. I do not recommend removing it unless it is painful as it usually recurs until the body is ready to absorb it. Continuing wearing the post surgical garment may help resolve it.
The tummy tuck scar may be as poor as it is because of the multiple infections. We don't see much trouble with pubic hair, though infection and suture spitting can really pose a problem. Steroids, as well, can cause the scar to thin and widen. I think the scar can be revised and improved....