Cecilia Cheung, who has been painfully thin in recent years, has recently become full of cheeks, but this fullness is different from the fleshy face of her girlhood. The abrupt risorius looks bloated and it will be a bit strange to laugh. In fact, there will be a swelling period after playing hyaluronic acid. Why is it swollen? Because hyaluronic acid has certain water absorption, these waters will return to normal after being slowly metabolized. Generally, the peak of swelling is within 72 hours after hyaluronic acid is finished, that is to say, the swelling is increasing in the first three days, and the swelling is gradually reduced on the fourth day. Until a week later, the swelling was completely relieved.