If she's scratching THAT bad - I would pop her right into the tub and use whatever you've been using on her and RINSE her very very well.....poor baby ...being itchy is no fun at all. Maybe put a tiny bit of ear powder in her ears if they're bothering her
Do you think the groomer got water in her ears ? They sell drying agents that will clean and dry out the ear....if you think she did - watch her carefully - I have a cocker that gets an ear infection just LOOKING at the bathtub
ps...If you want me to fix your avatar so it isn't itty bitty

...send me a pm ok ?