It's a cold. If so, it's likely an allergy. And then there's sneezing. People with allergies tend to sneeze a lot more than people with colds. Also, consider how long you've had the problem.
Colds come and go in less than two weeks.
Allergies usually hang on much longer. And there's one more big difference between allergies and colds. Colds are caused by viruses, so they can be passed from one person to another. Allergies occur when your immune system overreacts to natural substances like pollen. So, at least you can't catch an allergy from somebody else.