At first, I looked up some methods of face massage on Baidu. I will make my hands into fists every day, and then push the meat on my chin to both sides of my cheeks for more than half an hour every day. The effect is slow, but if you persist, you can see changes in a week or so.
Because chewing gum will make my muscles bigger, I will also read aloud for 45 minutes every day, so that the meat on my chin will also be exercised. Later, while the whole person was slimming down, I bought a lot of slimming horse oil and put it on fleshy places, which will accelerate the burning of fat and be of great help.
Now I'm thin and I don't have a double chin. I hope my method can give you some help. Come on, reduce your chin, and you will succeed!