For how long after the face slimming injection can be pregnant, so far there are no statistics, but clinically it is usually recommended to get pregnant after six months after the face slimming injection. Face slimming injection is a type A botulinum toxin injection, botulinum toxin belongs to the neurotoxin, by acting on the acetylcholine of the post-synaptic membrane, causing muscle atrophy, and eventually achieve the purpose of face slimming. Although there is no direct evidence that botulinum toxin will affect the fetus, but the clinical in order to ensure the health and safety of the fetus, most recommend six months before pregnancy. If the face is slightly swollen after facial injection, you can use ice to apply cold compresses, quit smoking and alcohol for a week, pay attention to a light diet and avoid spicy and stimulating food to avoid facial irritation and inflammatory counter. In addition, patients are advised to consume as little hard food as possible, such as nuts. Pay attention to chewing habits when eating, which is conducive to maintaining the slimming effect of the face for a long time.