Any exercise or physical activity that gets the heart rate up and the blood flowing and releases endorphins is going to raise your energy level. Good cardiovascular exercises will strengthen your heart and give you more stamina.
When you feel the need to sneeze, the best step to follow would be to put the crease in your mid-arm up to your nose and sneeze into that. This will prevent germs from spreading to others if you sneeze into the air or your hand.
