Since hydrafacial injections need to be injected under the skin, the needle needs to pierce the skin will produce some damage. Therefore, follow-up repair and treatment is necessary, patients can apply masks, avoiding water, good sun protection, etc.. 1. Apply mask: It is recommended that patients apply medical sterile mask regularly after the injection of hydrafacial needle, so as to play the role of hydration, relieve the redness and swelling discomfort. 2. Avoid getting wet: avoid getting wet within 24 hours after the injection of hydrafacial injection, at this time, the skin puncture point at the needle hole is not healed, contact with unclean liquids such as the use of tap water to wash your face, may increase the chance of infection. 3. Do a good job of sunscreen: because the skin barrier has not yet recovered after the injection of hydrafacial injection, UV irradiation is easy to leave behind inflammatory hyperpigmentation. Therefore, it is necessary to strictly sunscreen, it is recommended that the main physical sunscreen, such as wearing a sunshade hat and so on. For patients after the injection of hydrafacial injection is recommended to strictly follow the doctor’s instructions for scientific care, the emergence of unrelieved redness, swelling and discomfort is recommended to go to a regular hospital in a timely manner, under the guidance of a professional doctor to standardize the treatment, so as not to cause adverse consequences.