Is it possible to lose weight quickly during Chuseok?

I feel like I've suddenly gained weight because I ate too much greasy food like galbi, jeon, and namul during the Chuseok holiday. I'm wondering if it will be possible to lose this weight quickly after the holidays end.

I've heard that weight gain right after the holidays is usually due to severe swelling caused by sodium and water, rather than actual fat gain. So, I've heard that if you adjust to a low-salt diet for just a few days and drink plenty of water, you can lose some of it.

Has anyone ever experienced gaining weight and losing it quickly? Please share any tips or methods you have for effectively recovering your condition in a short period of time!