Annoying Allergy? Or Cold?

It has been 4 days since I got this runny nose and sneezing non-stop. I am not having fever, but I felt like my body is hot like burning. Thank God, I don't have fever when I checked my body temperature. I tried taking Nyquil before I sleep at night, and it knocks me down, only to have another endless runny nose and sneezing again when I wake up in the morning...agh! disgusting! Anyway, I thought it might be an allergy, so I took Claritin (anti histamine) and it seems to be working good. I hope I can be back to normal soon. It's so annoying and I don't feel like working when I get these symptoms.