Botox injections result in temporary paralysis of certain facial muscles involved in causing frown lines, crow’s feet, forehead wrinkles and other problems. The uses of Botox are ever expanding and now include treatment of the muscle bands on the neck and muscles of the chin, which in some individuals cause undesirable irregularities. The solution is a neurotoxin derived from the bacterium clostridium botulinum. Onset of improvement is usually seen within two days and will last from three to five months after which muscle function returns.