Teat disinfectant for the control of mastitis. Holding can upright, apply a brief spray 1 inch below each teat after milking. Fight Bac contains chlorhexidine and glycerine to protect against infection and maintain good skin condition. The chill of the spray causes the opening of the teat to close faster. This gives mastitis-causing bacteria less time to enter. One can of Fight Bac will treat approximately 300 cows.