[Anonymous]

“This is so confusing….the more research I do, the less I know what to feed my itchy baby”.

IMO, you are over thinking it. Just find a limited ingredient food that agrees with her, keep it simple. And make an appointment with a dermatologist….that is what I would do.

Food and supplements are not cures, chronic conditions need the expertise of a specialist.
Especially a senior dog (over 7 years old).