Plan B Pill

I went to the store the other day to buy condoms for my presentation and while in the area of the store where they sell contraceptives I saw that they also sell the Plan B Pill. I was amazed when I asked one of the workers if people need a prescription to buy it and she said no. I then proceeded to ask her how many times can a person go in to buy the plan B pill and she said as many times as they want to. This means that girls can use this as a form of birth control, which is not safe because using it to many times can be dangerous to your body.  The pill should only be used no more than four times or so in ones life time according to my mentor.