Irritated red throat

Went to the ped the other day since Chloe was starting to get fussier during feeds. The Ped noticed that her throat was red/irrated and she increased her dose of prevacid. However, two week later her throat is still red. Could that still be from the reflux? Should we ask the ped to increase her prevacid dose? Has anyone else had this issue come up? Any feedback is greatly appreciated.