With the growth of the skin will appear a lot of wrinkles, for female friends are very distressed, in order to let the skin back to a young state, many people will choose to inject hyaluronic acid, such a way is safer and the effect is obvious, then before and after the injection need to pay attention to what? 1, before the injection must keep the skin clean, any cosmetics and skin care products must be clean, the best is to choose to clean with cold water, so that you can shrink the pores. Do not use anticoagulant drugs when the patient is a few days before treatment, because these drugs are likely to cause bleeding and swelling at the site of the hyaluronic acid injection. 2, hyaluronic acid Soviet Union within 4 hours after should try to avoid massage face, sleep or exercise do not press the injection site. 3, within two days after the injection to keep the injection site in a static state, and also to avoid too much facial expression, so that the injection site can be more evenly distributed filler. 4. Do not apply cold compresses or hot compresses to the injection site, as this will easily cause changes to the fixed hyaluronic acid. After the injection, you should not do strenuous exercise in the short term, otherwise it is easy to have some accidents, and also pay attention to maintenance care, but do not massage.