Hyaluronic acid dermal fillers can be dissolved by the injection of an enzyme called Hyaluronidase. There are multiple reasons why someone may want to dissolve dermal filler, including; overfilled, migration, unevenness, allergies, asymmetrical result, infection or simply change of mind. A patch test must be conducted before treated of Hyaluronidase as there is a small chance of allergic reaction.