Hello and thank you for the question.
The description of your tear trough as a consequence of Juvederm injection is not typical. It would be helpful to know how far out from the procedure you are. In general, mild lumpiness can be massaged out in the early stages of treatment. However, if this is longstanding sequelae (greater than 2 weeks), I would be concerned this is a result of poor injection technique and may require the use of hyaluronidase to correct it. I would confer with your treating clinician for an evaluation and management plan.
Glenn Vallecillos, M.D., F.A.C.S.
Web reference: http://www.BeverlyHillsCosmeticSurgeon.com