4 Answers

It could be an allergy.. Common symtons Itchy skin and eruptions near the base of tail. Other commonly symtoms are inflamed ears, exessive licking of front feet licking and draging rear end on floor, because irritated rear end. If that is his symtom, try changing his food to natural Dog food.

She could have allergies. How much hair does she have? Fleas can bury themselves into it and you may not see them even with a bath. If she's allergic to fleas, all it takes is one bite. My recommendation is that you take her to a vet.

Could be dry skin. I give my dog bacon grease every now and then....Ask your vet....

Sounds like your dog has a allergy to either flee bites or the stuff you are using take this dog to your vet also would like to point out that your dog could be stressed for some reason as this can happen as well to  Vet ASAP  thank you