OMG I have the same problem with Trixie. She started in March and it's been all down hill from there. First they thought food allergy so we switch the food and put her on an antibiotic, predisone and a special shampoo.. Then they thought Yeast infection so she was put very expensive yeast medicine and a new shampoo for two weeks.. From there they wanted to put her on Atopica for allergies (for the rest of her life) so I switched vets.. This vet is treating her for mites. (manage) it's been four weeks and little to no change. I too put shirts on her to stop her from ripping her body raw. We have an appointment Thursday to recheck her but I'm now convinced it's not manage either after seeing this site. Trixie is also very greasy and flaky so I read on here to try baby shampoo or (human) dandruff shampoo so I went out yesterday to get some.. She seemed to scratch a little less but it's to soon to tell. Good Luck with your pup and let me know what happens I could use some help too... Thank.. Missy