There are usually very little side effects from a small injection around the lips, but on occasion it may be more difficult to purse the lips or suck on a straw. Other then the occasional bruising, that is about it.
Typically, only about 4 units are needed on the upper lip area to help minimize the appearance of fine lines ("smokers lines"). More units can prevent movement and make it difficult to move the mouth, which is why most injection specialists do not use more than a small dosage of Botox for this area. If the technique is done properly, very few side effects should result from treatment.Best of luck!
