Hydrafacial injection is an injectable type of medical aesthetic program that involves injecting medication into the dermis. Long-term hydrafacial injection will lead to skin sensitivity and fragility, infection and so on. 1. Sensitive and fragile skin: hydrafacial injection is an invasive operation, which will leave a traumatic surface on the skin. If you take hydrafacial injection for a long period of time, it will cause the loss of the skin’s stratum corneum, so that the skin will become sensitive and fragile. 2. Infection: Long-term hydrafacial injection will also increase the risk of infection. If the infection is not controlled in time, it may cause redness, swelling, heat and pain of the skin, and in severe cases, it may cause hyperpigmentation and scarring of the damaged skin. It is recommended to have a professional physician to operate the water light injection, and to consult a doctor in time if discomfort occurs.