Today over the course do several hours my lower lip has swollen up. It started on the left with a little swelling, and has spread across most of the bottom lip- I do not think I have ingested anything i am allergic to. The wind has been really bad today (we live in Las Vegas) and lots of people are battling allergies, so I took a benedryl a few hours ago. It has only gotten worse since. In addition, my scalp has been really itchy since yesterday, and I have a few itchy spots on my thighs and one on my buttocks. My ears feel a little itchy and so does my throat so it feels like allergies, but why would my lip swell up with seasonal allergies? This is really strange! Any thoughts?