Cut it into thin slices and apply it to the swollen area like a mask. After a period of time, it will have an immediate swelling reduction effect. If you are afraid that the incision is not uniform enough to adhere to the skin well, you can also mash it, make it muddy, and evenly coat a layer on the swollen part, which can also give full play to the anti-inflammatory and detumescence effects of potatoes.

Suggestion: eat more parsley, mushrooms, medlar, red dates, onions, garlic, pumpkins, melons, pineapples, grapes, mung beans, coix seed and so on. Eat less salt.