Thank you all for your very helpful info in your posts.After researching many articles I think I have narrowed down Willow’s problem first an update she is doing much better itching and hair loss has stopped and the area of the proplem is not spreading .Now for my detective results.Usually around the first frost,we live in new hampshire I take her and all my past dogs off all treatments for several months.I took her off end of November,her advantex flea control, and Xmas week I brought her to my vet’s Kennel for several days boarding.The winter months especially this year are very cold and dry and I heat with a pellet(wood stove,)and altho I have a humidifier I don’t think it was enough to get the moister up in our sleeping area.Resulting I think she got a flea bite at the kennel and that condition was worsened by dry and cold.We are on the mend many thanks
