Botox is used cosmetically to reduce facial lines and wrinkles and for medical purposes to treat overactive bladder symptoms, urinary incontinence due to detrusor overactivity, neurogenic detrusor overactivity (NDO) in children 5 and older, chronic migraine, muscle stiffness in people 2 and older with spasticity, cervical dystonia, strabismus or blepharospasm in patients 12 and older, and severe underarm sweating. Botox Cosmetic is the brand used to smooth wrinkles. Botox Therapeutic is used for medical purposes and injected into specific muscles to relax them, or sweat glands to reduce sweat production.