I received Juvederm in lips about one month ago. At first I had a large bump come up on bottom lip. My doctor advised I had scar tissue so he had to inject up to two syringes. The bump has finally gotten better since the last follow up I seen him. He massaged it, but now it looks like I didn't receive any Juvederm. This is second time I've received Juvederm, and didn't last. The first time was in areas by nose down to mouth. What could be causing this?