Hydrafacial injection can play a hydrating effect in a short period of time, but also can shrink and refine pores, in order to maintain the effect is generally recommended to do once every 1~2 months. 1. The injection component of the hydrazine injection is the lower molecular hyaluronic acid, which can be quickly absorbed by the body, and can play a hydrating effect in a short period of time, but also can shrink and refine pores, prompting the skin to tighten and smooth. Normal human skin metabolic cycle is 28 days, in order to maintain the effect of hydration, the overall skin metabolism needs to be done after the completion of a cycle is better, so the water light injection is generally recommended to do once every 1 to 2 months. 2. After the hydrazine injection, do not touch and rub the skin, rubbing the skin will destroy the epidermis, causing dry skin, roughness, redness and other reactions. At the same time, try to eat a light diet, pay attention to not eat seafood, spicy and greasy food, seafood is easy to make allergic to the skin redness, swelling and itching performance, spicy food intake is easy to cause wound infection. It is recommended that patients go to the dermatology department of regular hospitals for consultation, and under the operation of a professional doctor for hydrafacial injection treatment.