Heartburn from inhalers

Was recently diagnosed with COPD. I am currently on trelogy and I know the side effects include heartburn. Sometimes it is very extreme, and other times it's just a minor burn. I know this can't be healthy for my esophagus and I don't want to take even more medication to treat the heartburn. Does anyone have any natural remedies to keep the heartburn at bay or to protect my esophagus and sphincter?