False hyaluronic acid is not uncommon, because some bad injections are often used as hyaluronic acid in illegal medical beauty, which makes many people inject false hyaluronic acid. Pseudohyaluronic acid can neither be absorbed by human body nor dissolved by lysozyme. If it is not taken out, it will remain in the body and cause harm to the human body. Patients should be found as soon as possible, treated as soon as possible, and recovered as soon as possible.