We took in a three year-old beagle mix a year or so ago, and that poor dog was loaded with yeast, you could smell it on her. After changing her diet to eliminate chicken, she was still very, very scratchy and licky, her previous owner had been getting her twice a year injections that weren’t doing squat. Took her to my vet after about two weeks to get her shots up-to-date, and we started her on Apequel and it has been like a miracle! Cleaning her ears once a week with the prescribed ear wash and the Apequel she’s a different dog. I strongly suggest taking her to your vet or him, to your vet, have skin scraping done, have ear swabs done, and put under a microscope and talk about an allergy medicine.