Yup, it's happened to me 2, bad enough that I couldn't swallow liquids. My throat is very prone to swelling up completely shut~ and it has a couple times now. Any kind of throat infection goes overboard b/c of my ETD. Are you on a nasal steroid spray? You should be if you are having that problem. Also, Sudafed Severe Congestion(tiny pill, should be easy to get down! =) ), works like a charm.. usually it's all I need to combat the swelling. Do you have allergies? Allergies can cause ETD.. take an antihistamine if that's the case. If you have tried all this & still no relief, see your doctor, you may need a prednisone(oral steroid) burst to get things under control. Good luck