It's my first time getting lip fillers, so I don't know much, but two weeks ago , I got my lips treated with Belotero, the most expensive lip filler at the hospital. For the first three days, I liked the look and thickness because of the swelling, but after about a week, they went back to their old lips. My friends also said that they had forgotten if they had lip filler, and they said that if it was the first time, the filler would fall out in a week, so I made another appointment in a week and got 1 cc more of the same thing. However, it only felt good for the first 3 days, and after a week, my lips were back to how they were before. I kept the filler. They say the period is 1.5 to 2 years, but I keep ending it in just a week, which is so ridiculous. What should I do to make it last longer? I'm planning to try it one last time, but this time, should I try a domestic product...?