Swelling post injection shouldn't be expected to be even. Some areas may have more swelling than other areas. When the swelling settles down (at least 10-14 days after the initial injection was done) if you find you have any unevenness at that point, you can see your injector again for an evaluation and possible hyaluronidase. But swelling shouldn't be expected to be even. "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."