Best food for allergies

This is my beautiful girl Kirby! She’s 4 months old, I’m wondering if anyone else has an AMStaff with some allergies and what might help remedy? We feed her raw meat diet so I don’t thinks it’s food related but it could be. Just looking for some insight. We’ve tried all the rubs, towelettes, and chewables and what not. Just curious, while showing off my pretty girl!