I always have cold and runny nose. Even when it is very hot and sunny outside. These runny nose and sneezes come at very odd occasions. Like if I scratch my nose a bit, I sneeze. If I didn't get enough sleep then i sneeze and have runny nose. Even if i think hard about having a cold then i sneeze and get cold like symptoms. I've had this condition for as long as I can remember. Just typing this description makes me feel like sneezing. I've tried antibiotics and anti histamine. Nothing helps.