For years doctors have prescribed acid blockers to children with no symptoms of acid reflux to try to help control their asthma.
But a new study shows the anti-reflux medicine isn't helping.
The research followed more than 300 children between the ages of 6 and 17. In addition to an inhaled steroid, about half the children were given an acid blocker for six months, and half a placebo. None of the children had symptoms of acid reflux.