Yes, you can smoke or drink alcohol after lip filler treatments.  But note that both alcohol and smoking are known to dehydrate (dry out) the skin.  Alcohol and smoking are also causation for more wrinkles, stress lines, skin discoloration and impact on the organs that provide you the healthiest appearance possible.  Alcohol intake can also lead to bruising, so perhaps it is best to wait a few days before you have a drink. After your lip injections we would recommend avoiding alcohol and smoking as much as possible but it is not universally medically impactful after treatment.