What Causes Sore Throat With Difficulty In Swallowing?

I've had what feels like a sore throat for weeks now. It only hurts a few times a day to swallow, but I constantly feel like it's a certain spot in my throat that is sore. More often than not, it hurts when my head is tilted down. I went to a clinic and the Dr. prescribed Fluticasone spray, which I've been on for about a week. I'm also gargling warm salt water to see if that helps. Is there anything else I should me doing, or is it serious enough to go see a ENT specialist?