Thank you for your question. Normally I like to wait a few weeks depending on how much is injected to dissolve the filler. Consult with a Board Certified Plastic Surgeon for a treatment plan that is best for you.
Hyaluronidase breaks down hyaluronic acid but not fat. With that said it can break down natural hyaluorinc acid as well as Juvederm. The effects are highly does dependent. A conservative dose placed right in a collection of filler will dissolve the filler. A large does spread around outside...
Having a patient charged for hyaluronidase is routine practice for most cosmetic surgeons, especially when the patient is coming in from elsewhere. I would address the issue with the initial injecting provider first.