My plastic surgeon put in a hard palate graft in my lower lid in an attempt to fix my droopy lid (which was caused by a previous surgery) about 7 months ago. He is pleased with how the graft fixed the shape of my lid but the lid is still being pulled down when I open my mouth. The next step he said was a steroid injection to break up the scar tissue and hope that helps with the pulling. What are the risks with the shot? Do the effects of the shot last forever or do I need maintenance injections?