Device and method for dispensing a drug

A device for dispensing a drug, the device comprising:

• a case;
• a container within the case, the container forming a chamber containing multiple doses of the drug;
• a pump on the container, the pump having a pump outlet and configured to release the drug from the chamber and out of the pump outlet when the pump is actuated;
• a spreader connected to and movable relative to the case, the spreader forming a drug passageway coupled to the pump outlet, the spreader including an exposed surface that, when pressed against the skin, actuates the pump to deliver the drug to the exposed surface;
• and
• a lock connected to the spreader, the lock having a numerical limit and configured to allow the spreader to actuate the pump when the pump has been actuated a number of times less than the numerical limit, wherein the lock includes a lock member that changes position with each actuation of the pump by the spreader, the lock member is configured to prevent the spreader from actuating the pump when the pump has been actuated a number of times equivalent to the numerical limit,
• wherein the lock member has a plurality of positions including a lockout position, and the lock includes a gear coupled to the spreader, the gear rotates when the spreader actuates the pump, and the lock member, when at the lockout position, obstructs a tooth of the gear and prevents rotation of the gear when the pump has been actuated to the numerical limit of the lock.