My Chewy used to scratch her ears....the vet put her on a non allergenic dog food and she's MUCH better. She hardly scratches now. She used to get ear infections at least twice a year. Now she doesn't get any. Also, right after the bath, I put ear cleaner in her ears and then clean it out. She used to be loaded with wax....now it's nothing there. The qtip comes out clean! Amazing!