text: Please don't be like most of America (and a previous answer) and go running for the antibiotics right away. That is not the best way to go about things. The only time you need antibiotics is when you know you have a bacterial infection of some sort. Antibiotics don't do anything for viral infections. Having said that, a slightly raised white blood cell count may not mean anything, but there is a chance that you have an infection of some type. This could be something simple like an allergen in your system, or you've encountered a type of virus/bacteria that you have already fought off once before and the "memory cells" are doing they're job to ensure it doesn't make you sick again. There is a small chance that it could be something more serious, but just be aware of your condition and take the proper steps if needed. Nobody knows how you feel better than you do! Good luck.