[Tinksmygirl]

Originally Posted by ladyjane

Did the vet do any skin scrapings or blood work? His hair looks very dry. Could be thyroid..that often happens with hypothyroidism.

Hypothyroidism in Dogs: Symptoms and Treatment on MedicineNet

If your vet cannot diagnose it, I would suggest a vet dermatologist.

I wonder if this could be why Isabella's hair is so dry and also thinning on the back? I am going to mention this when I take her back for her recheck.