Under normal circumstances, after 24 hours of face slimming injection can be applied mask. The injection of face slimming needle that is injected in the facial muscle layer of botulinum toxin, injected into the body can be quickly combined with the muscle receptors to produce muscle relaxation effect, and can not be combined with the receptors in time botulinum toxin molecules will be metabolized in the body, clinically can be injected through the face slimming needle to achieve the purpose of face slimming and wrinkle removal. For women with large bite muscles and the formation of the face, will consider the injection of slimming needles, the injection of the needle used is very fine, after the slimming injection of 1 day will be the basic healing, and after 24 hours after the injection of botulinum toxin, the blood has not detected botulinum toxin molecules, so the second day you can put on a mask, while recommending the use of professional doctors recommended repair class sterile medical mask. After Botox injection, it is recommended not to massage or rub the needle eye area to avoid deformation.