Pardon my breaking in on all the good suggestions. If this were my dog, I would consider using silica, perhaps in a 30C potency, repeated once to twice daily for a week or similar. Some of the primary considerations are: lack of vital heat and energy, cracks around the eyes with yellow discharge, disorders after operation, thirst after eating, hair falling out, and possibly brittle bones. The dog enjoys being carressed, and silica is a chronic of pulsatilla.

Hope this is helpful--