Dispenser having piezoelectric elements and method of operation

A dispenser for dispensing a liquid onto an animal, comprising:

• a primary reservoir configured to hold the liquid;
• a piezoelectric element disposed adjacent or in the primary reservoir, the piezoelectric element having an inlet to receive liquid from the primary reservoir and an outlet for the liquid to exit;
• an internal capillary action means adjacent the inlet of the piezoelectric element;
• an external capillary means disposed on the exterior of the dispenser and being in liquid communication with the piezoelectric outlet, the external capillary means being configured to allow the liquid exiting the piezoelectric outlet to collect or pool in or on the external capillary means and eventually roll from the external capillary means onto the animal;
• and
• a secondary reservoir in fluid communication with the outlet of the piezoelectric element.