I received a shot of 12 U of Hyaluronidase to treat a 2 years old tear trough edema caused by a highly cross linked hyaluronic filler injected by mistake inside orbicularis and lip elevator muscles (ultrasound revealed that it was fragmented in tiny particles infiltrating muscular fibers). Even after 12 U of Hyaluronidase the permanent edema reduced very little, but the “lump” is still there. What could be done now?