How long does it take for Hyalase injection for uneven skin to dissolve?

3 month ago i had tear trough injections with Voluma. The result was uneven. I went back to the doctor and he told me he could dissolve that filler with hyalase and promised that it will only effect the filler. So, we dissolved most of it. After 3 days i noticed very thin skin and deep hollows which i hadn't before. Because of the rest of voluma it doesn't look even. I'm very afraid to try a second round hyal. how long will it take for the rest to dissolve on its own? will my skin ever recover?