Most definately it is an allergy to something. I was up half of the night with an itchy throat. I just couldn't stop the itching. My nose was becoming congested too. I highly suggest some Benadryl. I can't live without it. My sisters dog was here yesterday and she had jumped on my clean laundry. ugh! I had put the fresh sheets on the bed and seriously had a reaction. I am so allergic to animals. It is too bad because I love dogs! But the itchy throat is a sure sign of an allergy to something. I also have some sores on the back of my throat. It takes days to clear them up. The doc says it's a virus. But alot of these things are allergies so don't panic. Just get some Benadyl. Good luck!