In general, the sequelae of the injection of water-light injection rarely occur. People with sensitive physique, the drug can not be fully absorbed, may produce corresponding hyperplasia, if allergic to the drug, may lead to skin acne. 1. Localized hyperplasia, nodules: hydrafacial injection is the use of special tools hydrafacial instrument, plus small molecules of hyaluronic acid or other drugs, injected into the dermis. Some people’s body is sensitive, after the injection of water light needle, the drug is not fully absorbed, if the body’s tissues produce corresponding stimulation, may form hyperplasia, nodules. 2. Allergic acne: each person has a different body type, sensitive people, especially to the components of the drug inside the allergy, the injection of hydrafacial injection may produce an allergic reaction, resulting in skin acne. To summarize, due to the different physique, everyone has different clinical manifestations after injecting hydrafacial injection. If there is a need for cosmetic treatment and acne or nodules appear on the skin after injection of hydrafacial injection, it is recommended to consult a doctor in time to avoid further aggravation of the symptoms.