My sweet border terrier has been going to my old vets since may 2009, never could they tell me what was wrong. My new vets did 3 skin scrapes and 3 biopsys on her last week,  i have now been told she has demodex mange !!!! They are treating her with Prodermis Duo for 3 months, has any one else heard of this. the poor thing is only 18 mnths old and has hair loss all over, i really hope i hear some happy stories back fingers crossed

This article will help you. (Scroll down for demodectic mange.)