The face slimming injection is often referred to as Botox, nowadays many beauty lovers choose to inject face slimming injection to achieve the purpose of slimming the face. But there are many beauty lovers worried about whether there will be side effects of face slimming injections. So, is there a side effect of face slimming injection? The face slimming injection is essentially the use of botulinum toxin injection to treat bite muscle hypertrophy, in the face on both sides or unilateral bite muscle injection of a safe dose of botulinum toxin, so that the muscle relaxation, atrophy, bite muscle activity to reduce, so as to achieve the effect of thinning the face, non-invasive, fast recovery, usually the first 3-7 days after the effect can be seen. As a muscle injection drug, face slimming injection has no significant side effects and has more advantages than traditional surgical methods. Local adverse reactions after botulinum toxin injection mainly include excessive weakness of the bite muscle, and the corresponding manifestations caused by the spread of botulinum toxin face slimming injection to the adjacent muscle tissue, and these clinical manifestations are related to the injection site and the dose of injected face slimming injection. Individuals have found fever, discomfort, and fatigue after Botox injection. Usually these clinical manifestations will disappear on their own within a few weeks. The side effects of facial slimming needle is very little, from the injection of facial slimming needle after a variety of reactions, as well as the safety of facial slimming needle and other aspects of the comprehensive analysis, the regular acceptance of facial slimming needle injection patients in general will not have adverse reactions to the side effects of facial slimming needle.