Before answering this question, we will introduce you to the preparations before playing hydration injection: 1, before the operation for the beauty seeker to do a good job of cleaning 2, for overlay numbing preparations So, in the process of playing hydration injection, there will be a slight stinging sensation, but the pain will not be too great, the face is acceptable. This pain is mainly at the time of playing, not long after playing the pain is not obvious. After the eye of the needle subsides, the skin will start to look better. The beauty seeker asked: Why does the hydration injection become more and more painful? There are four possible reasons: 1, the role of anesthetic disappeared 2, the use of incorrect dosage of anesthetic 3, the length of time to apply anesthetic is not right 4, different parts of the sensitivity is not the same water light needle with surface anesthesia, whether the regular anesthetic, the right dosage, the method of applying anesthetic, the right length of time, etc., these are directly affected by the experience of playing water light, so it is recommended to go to a regular hospital to receive water light needle treatment. Some beauty seekers ask: what is the adverse reaction after playing the water light needle? Generally, after the hydrafacial injection, you can go to work normally the next day. Although its incision is only the size of the eye of a needle, but the skin has damage there may be risks, so there are some adverse reactions to playing hydrafacial injection. For example: 1, there is a light bruising or redness Just after the injection of hydrating needle, the skin will have a ground that small reaction – for example: there is a light bruising or redness, this is normal, 2 ~ 3 days will disappear. 2, hydration injection will be directly injected into the dermis nutrients, contrary to the normal physiology of the skin, skin irritation is difficult to completely avoid may cause pseudo-skin sensitivity, may also stimulate the body rejection, causing edema, rash, redness, puffiness and bruising, etc.. 3.Ecchymosis The injection is taking anticoagulant drugs, the blood is in a state of low coagulation, or the injection is too deep, the negative pressure is too large and other factors can cause ecchymosis, another situation is the physical problem of the candidate. 4.Infection Infection may be caused by factors such as strict sterilization, violation of aseptic operation norms, repeated use of negative pressure catheter, etc. In addition, improper care may also cause skin needle infection. Topical antibiotic ointment (such as erythromycin) can be applied to the infected area, and if necessary, the infection can be treated under the guidance of a doctor. 5, hyperpigmentation After playing the water light injection should do a good job of sun protection, otherwise there will be hyperpigmentation occur. In addition, the injection has photosensitive ingredients, infection and allergies, etc., there will also be pigmentation. 6, hydrophobic injection ingredients impure, complex, the amount of all can cause subcutaneous capillary rupture, red blood aggravation, local stiffness, lumps and other side effects.