I had cheek fillers but I think it migrated and dropped down my face towards my smile lines giving me bad nasolabial fold on one side of my face. 1) How can I be sure it is the filler that is causing this? 2) Can Hyaluronidase be injected into that area? 3) What if that area doesn't have filler and hyaluronidase is injected? What will happen to that area? 4) What can a DR. use to scan my face to see where old filler is located? 5)Is there any Dr in Los Angeles that scans face for filler?