Out of curiousity I visited www.bichonhealth.org
I looked around quite a bit and did not see anything where that it recommended any particular type of food. It gave the normal guidelines for what to look for in a so called quality food, but did not mention any brand or protein source to use.
As sherrylynne has mentioned we are all trying to help a teenager who is trying her best to convince her Mother to try other foods since the Hill's was causing severe skin issues.
It was previously recommended that the dog eat more wet food, but the Mother of the poster wants to continue to use dry. So Sylvia if you know of a particular brand of food that may work well for this dog, please share it.