Generally, there are the following kinds of people who are not suitable for playing water-light needles:
1. If you have facial plastic surgery or laser surgery for half a year and implant any medical objects, please inform the attending doctor in advance. Such as rhinoplasty, photoelectric wave laser and so on.
2. When there are a variety of severe allergic symptoms, or when there are acne, acne or wounds in the treatment area, do not inject with water needle first.
3. People with scar constitution can't do it.
4. People with serious diseases, such as heart, liver, lung, kidney and brain diseases, should not be injected with water needles.
5. Women during menstruation, pregnancy and lactation should not inject water needles.