Hello everyone.  I have a 13 month old male named Jake, who has had a skin problem since I got him at age 8 months.  He has bumps all over his skin that dry up and flake and loss of hair on neck where most bumps are.  I have taken him to the vet more than twice for this.  He took a skin scraping and looked at it under the microscope.  He said it is a Staph infection.  Jake has been on two courses of Cephalexin (keflex) for a total of over 8 weeks. Each time we stop the meds, the bumps come back within 3 days.  I feed him Innova Large breed puppy which is great food and I know it's not a food allergy since he spent 2 weeks on rice and boiled meat for a GI bug and the bumps never went away.   Can anyone relate?  Also, what shampoo should I use and how often? -he's a dirty dog, always playing in the river, mud and overgrown fields, so I usually bathe him once a month before I apply his flea/tick meds.  Thanks!