If you have a patient with EoE on Dupixent 300 mg weekly, and they have severe tree nut allergies, would it be safe to add Xolair for severe food allergy?   

Yes, it would be safe to add Xolair if deemed absolutely necessary through shared decision making with the family. However, I generally do not recommend using more than one biologic medication at a time. Additionally, while Dupixent has not been approved for the treatment or mitigation of food aller...