I had really, really bad swelling - like, Brassard's nurses said it was the worst they'd seen, and they see a LOT of women. The good news is that it did all go away; in my case, that took close to two years (but it looked almost normal for the second year). Incidentally, Brassard also said that it usually takes at least a year for all the swelling to disappear, and that it would be at least four months before it had reduced enough to get a sense of the details down there, so 4 weeks seems *really* early. I wouldn't worry about it yet.