Oral steroids can exacerbate reflux symptoms very badly. In case some people aren't aware of this, if you have reflux and need oral steroids (prednisone etc) make sure you insist that your GP gives you enteric coated ones. They are more expensive so GPs dont automatically prescribe them.
What the enteric coated ones do is prevent absorption in the stomach which is what makes reflux symptoms so much worse. Instead the pills travel down a bit further and get absorbed in the small intestine.