Onset (poor dog) just after a vaccine?  22 year old friend got her lupus (even 
though warned) week of vaccine at college.  Your dogs loss of hair and allergy 
symptoms all could be direct result of vaccine.   I got my MS immediately after 
a vaccine.  Auto immune disease rears up when poisons (vaccine) are pushed into 
a system.  Carol, had your dog been well-- vaccinated --then ill?  To those who 
need information on vaccines, forms for school to opt out vaclib.org.  My 
vaccine damage has been helped with CS.  My animals all get CS.  Some of my 
animals have been vaccinated before i got them.  I also use homeopathic Thuja 
to counter vaccine damage.