Botox® is a purified form of Botulinum toxin which bonds to the muscles where it is injected, stopping the muscle function and therefore decreasing wrinkle formation. Botox is used most commonly for the corrugator muscles between the eyebrows, which cause the frown lines. It is also commonly used in the frontalis muscles of the forehead, which causes the horizontal forehead wrinkles. It can also be used on the outside corner of the eye eliminating the crow’s feet wrinkles. Botox lasts for approximately three to four months and then it must be reinjected to continue the results. Botox is found to be extremely safe and effective. The amount of Botox used and the placement of the Botox can be adjusted for each individual patient, depending on their concerns and desires for improvement.
The procedure takes approximately five to ten minutes. A series of several injections are performed in the office setting. The patient is given the option of topical anesthesia if desired. The effects will be noticed within two to seven days after the injection. Risks of the procedure are bruising, bleeding from the needle sticks, asymmetry or incomplete results needing further injections. A very rare risk is ptosis of the upper eyelid. This is primarily seen after injection of the frown lines between the eyebrows, if the Botox is injected too close to the muscle, which elevates the eyelid. If this occurs, eye drops can be given to help elevate the eyelid. It is common to notice after the injection, around the time when the Botox is starting to work, a pressure sensation in the area where the Botox was injected. This is normal and does become less noticeable over time.
Depending on how the Botox® is injected and where it is injected, you may notice a change in your eyebrow shape. That is why it is important to discuss your goals of Botox with the physician before injection.