I just recovered from sun poisoning. I had a sore throat at the same time, but cough drops provided temporary relief. Now, my throat is much more sore and feels a bit tight. Cough drops don't help anymore. I also get a brief, throbbing headache whenever I stand up or carry objects that are just a bit more than "light" (i.e. bags from the grocery store). I have a semi-frequent dry cough and painful swallowing, as well. I had a friend check my throat for white patches indicating strep, but she didn't see any.
(I've never had allergies in my life, and neither has my sister, but since relocating to a more "country" area with lots of plants and pollen, she's been having allergic symptoms. I suppose that's a possibility...)