treatment is a noun, overtreatment would be a noun also.
Doctors overtreat patients.
Some of you are making this way too complicated. The penicillin was going to be given to the people that had the disease that cosmetic companies were for. Anything else in the world could have stopped the penicillin from getting to them.
But i digress.......Now we need to find something that will stop a superbug
And people vote, an action, a verb. The result of the action happens to also be a vote, a noun. Some words are both nouns and verbs. To treat is an action, a verb. Treatment is the result of the action, a noun.