After the injection of hyaluronic acid, usually 3-7 days of gradual recovery, the vast majority of people will not cause significant swelling phenomenon, but if the puncture of blood vessels leading to bleeding occurs, the recovery time will be slightly extended. Hyaluronic acid is a common cosmetic filler product, local injection can achieve good cosmetic results, with small trauma, fast recovery, obvious results and other advantages, accepted by most people. After injection of hyaluronic acid, some people will have localized pressure pain, patients do not have to worry too much about this, this symptom can be gradually reduced, until subside. After injecting hyaluronic acid, avoid squeezing and massaging the injected area, so as to avoid the phenomenon of hyaluronic acid displacement, which will lead to the incongruity of the injected area. Hyaluronic acid injection care, should also pay attention to the following points: 1, at least 2 weeks after treatment, avoid swimming, sauna, etc., should not be in the temperature of too hot, too cold environment, may shorten the effect of a week to pay attention to sunscreen and other issues; 2, avoid pinching and kneading the injection site; 3, avoid eating spicy stimulating, oily food, and seafood, avoid smoking, drinking alcohol. Diet should be light, appropriate physical exercise, do not stay up late, ensure adequate sleep, and develop good work and rest habits.