Hyaluronidase is an enzyme used to dissolve hyaluronic acid fillers in cosmetic treatments. If a filler has been over-injected or produces an undesirable result, hyaluronidase can effectively break down the filler, restoring the area to its natural appearance. The procedure is quick, often taking only a few minutes, and results can be seen within hours to a few days. While side effects are generally minimal, such as swelling or redness at the injection site, hyaluronidase is a valuable tool for ensuring satisfaction with aesthetic outcomes, providing a safe option for reversing filler treatments when needed.