What steps should be taken if one believes they were injected with black market juvederm plus (silicone)?

I believe I was given counterfeit product. I have now learned the price I paid for juvederm plus was much lower than it should've been (325/syringe). I have lumps and facial pain. Hyaluronidase with different dermatologists hasn't helped. After months of trying to get my medical records, I was given a product lot number for the "juvederm" which checked out okay. I believe my records were falsified.