dissolving filler
To dissolve lip fillers, you'll need to receive injections of hyaluronidase (Hyalase) near the filler. Hyaluronidase is a concentrated synthetic form of an enzyme that naturally occurs in your body. When injected, it begins to break down the filler, speeding up the dissolving process that would take place over time.
This will subside within 48–72 hours depending on the area and how much filler is required to be dissolved, however, it will take up to two weeks for all of the filler to be completely dissolved and settled back natural.