Cosmetic medicine is not an exact science, and patients occasionally have less than perfect outcomes with dermal fillers. Less experienced providers are more likely to make mistakes such as overfilling and asymmetry. Other side effects such as infection and allergic reactions can occur. Hyaluronic acid fillers such as Juvederm and Restylane products can be partially or completely removed with an enzyme called hyaluronidase. When injected into the affected areas, hyaluronidase dissolves the hyaluronic acid particles and may help in the event of vascular compromise, lumpy or irregular texture, infection in the treatment area, overfilling and dissatisfying results. Hyaluronidase isn’t perfect, and since products tend to be made from animal derivatives, certain patients may be at higher risk for allergic reaction and therefore not good candidates for the treatment. Make sure your patients know to call you immediately if they are experiencing pain, or unusual swelling, or the area feels warm to the touch. These are signs of infection that need to be addressed swiftly. Calcium based fillers can NOT be reversed with hyaluronidase. Each dermal filler product is unique and a wide variety of products are available. If this is a procedure you rarely provide, you might want to consider whether the possible complications are worth it. -Berkley Risk Complications with Dermal Filler Procedures. Is it worth it?