Botox injections block impulses from the nerves to the tiny facial muscles that are related to expression lines. These relax muscles of facial expression allowing the overlying skin to remain smooth and unwrinkled. Botox also treats blepharospasm and hyperhidrosis (excessive sweating). it is also used to soften the look af neck bands and help contour the eyebrows and make hypertrophic calg muscles and masseter smaller. Treating the masseter muscle results in a softer and less angular appearance of face.