Has anyone seen this type of rash on their boxer? Red spots and she's losing hair where the rash is. Started on her chest and has creeped up to her jowls. We have tried medicated shampoos and sprays but neither seem to help. Not even an allergy shot from the vet is helping. Could this be food related? She is currently not on a grain free diet as I've read studies that suggest this type of diet affects the heart and we know Boxers are prone to heart issues. Thanks for the help ahead of time.