seasonal flank alopecia
Hi. My dog, Jessica Tiger, had two "episodes" of seasonal flank alopecia. She had this twice when I lived in Atlanta and lost the hair on most of her back and sides. There were little tufts of untouched areas that weren't bald on her back and sides, but where she was bald, I mean she was truly bald. She's a brindle (hence the name Tiger) but when the hair grew back, it grew back dark brown. She's a strange looking girl indeed. But, it did grow back - twice. This hasn't happened in the six years I've been in Connecticut.
I took her to an allergist and every other doc and was told nothing could be done. At about the same time she was diagnosed with hypothyroid and she went on thyroid medication. She's never lost the hair since that time, but I'm told there is no connection. Who knows?
Good luck getting to the bottom of this. For Jess and I, this problem was a cakewalk compared to many of the issues we are facing now. Hang in there.