The botulinum toxin is a protein that can cause muscle weakness, and it is used for medical and aesthetic reasons.
One of the most common medical causes is the benign essential blepharospasm, in which the eyelid muscles contract involuntarily. When this is the case, Botox is applied in order to relax those muscles and improve the patient’s quality of life. The therapeutic effect is different in each patient, but the average is between 4 and 6 months. Patients must apply Botox again after that period of time.
The botulinum toxin is also applied for cosmetic or aesthetic use in order to eliminate wrinkles such as crow’s feet and to lift eyebrows. Botox shots or injections are applied under local anesthesia in the OR or in the doctor’s office. They do not require after surgery care.