Facial tics and spasms are the result of involuntary muscle contractions in the face. These can be recent in onset or chronic and may be constant or come and go. They tend to be worse at times of fatigue or stress.
They can also follow on from neurological injury. Using botulinum toxin to relax these overactive muscles can be very effective and life changing for the patient. The mode of treatment, time to effect, and duration of effect is the same as with treating muscles for dynamic facial lines and wrinkles.