I started using advair in early December 2006. The first month was great, no asthma symptoms, no side effects. However, after the second month (I am a very healthy female, exept for the asthma), I got pneumonia, chronic sinus infections, night sweats, dry mouth (especially at night), chest pain, swollen glands in neck,constant heartburn, anxiety, cystic acne, leg cramping. I weaned myself off the drug after doing more research on it. I was only on 100/50 once a day. I have been put on singulair for a few days now and feel great. I attribute all these symptoms to Advair use. It is not for everybody and those who use it should be well informed of these side effects. It made my life a living hell.