I had my intranasal steroid spray for my allergies in the plastic bag, and the TSA agent in Kansas City told me I could not take it aboard. She then told me that "those things don't work and I shouldn't be taking it anyway". I asked her supervisor to come over and then asked where she had received her pharmacological training and licensure to make that judgment. Long story short, I got to take the steroid spray on board and the supervisor was yelling at the officer as I left.