My neighbor won't stop polluting air in our apartment?

I need help knowing what to do about this. My elderly neighbor comes out of her apartment a few times per day and takes a bottle of glade air freshener and literally holds it down for a couple minutes straight, right outside my apartment door. The air comes in my apartment very strong and makes me cough and makes me feel sick. It is so strong that I have to go in my bedroom and shut the door which makes it hard for me to get things done. And when I get up the next morning it still smells like that in my apartment. I am concerned for my health because I have an autoimmune disorder and there are a lot of chemicals in Glade as well as research on detrimental effects of constant exposure to air fresheners. I have tried talking to her nicely to ask her to stop. I called my landlord and he sent her a letter but she only stopped doing it for 4 days before starting again. I think she's senile because she says she is spraying to get rid of the food smells coming into her apartment but I can't smell any food smells. Is there an organization I can call that will help me? An air pollution company in my town? The police? Any suggestions?