Every Two Or Three Months When I Come Home From

Every two or three months when I come home from work I sneeze for about 15 or 20 minutes then I'm fine. I get home about 11:00pm, I sit down turn on the TV, then I sneeze. This goes on every night for 1 or 2 weeks, no matter where I'm living at the time. But, if I did not work that night I don't sneeze.