Hi Jess.
It can be reaaly exasperating to see your dog so itchy and trying everything without seing that much of a result.
You could try to feed him Acana Lamb and Apple. It does not state to be an hypoallergenic meal but it is completely chicken, beef, pea and grain free.
You should also relieve her discomfort with antihistaminics at least just for a few days until her skin lesions start to get better. And regular baths normally improve the condition since they remove the allergens from the skin.
Hope she gets better soon.
