Hi everyone, i took one dose of fluconazole about 4 days ago, and I'm aware that one of allergic reactions you can have is having difficulty breathing. Tonight i was in a movie theater, and i dont know if it was claustrophobia or a reaction to the pill, but i felt like i couldnt breathe as easily. I still feel this way an hour later. Does anyone know how long it would take for me to show signs of an allergy to this pill? If i were allergic, would this have happened right away? I also have anxiety now and then, and when I do i have trouble breathing sometimes. I really dont know if its the anxiety, or the pill.