Roughly how long does a filler procedure for the sunken cheeks take?

I followed a really strict diet for weight loss, so while my body got thinner, I ended up losing all the weight in my face instead ㅠㅠ The sides of my nose and the front of my cheeks are deeply sunken, and everyone keeps asking why I look so tired, which is really stressing me out lol. I just want to fill in the sunken areas naturally a little, but I don't know... filler I'm planning to visit a dermatologist because I think a procedure would be the fastest and most effective option! However, since I'm a working professional, I want to squeeze in a quick visit after work, but I'm worried about the time from the anesthesia to the end. filler I'm so curious about roughly how long the procedure takes ㅠㅠ I also want to know if the swelling will be completely gone by the time I go to work on Monday if I get it done before the weekend lol. For faces like mine with severe sunken cheeks filler If any of you seniors have been hit before, please leave some vivid tips before you go.