I have a corgi that is now 7 years old, recently his hair has gotten very flakey, The first time I noticed this, I started giving him fish oil supplements in his food (Science diet for mature dogs small bites), a good shampooing and it cleared up right away. This time the flakes are bigger and more persistnt, we are going thru the summer, fall now into winter weather. Any ideas on how to treat this skin problem? I should also note that we are not 100% positive that rascal is a full corgi (We rescued him when he was around 8 months old... by vets estimation and didn't come with papers) although he looks identical to pictures of Tri-colored Pembroke Welsh Corgies . Vet said he could possibly have a little terrier in him because his fur is not as fluffy as usual in corgies., Don't know just love him unconditionally and get that back from him. !!