Can Insulin help with allergy?

Insulin is not used to treat allergies. Its primary role is glucose regulation, not modulating allergic immune responses. While some basic research suggests insulin may have anti-inflammatory effects (e.g., inhibiting NF-κB), these are not specific to allergies and lack clinical evidence. In fact, insulin itself can cause allergic reactions (insulin allergy). The evidence for benefit in allergies is purely mechanistic/unclear. For allergy management, established treatments like antihistamines, corticosteroids, or immunotherapy are appropriate. Using insulin for allergies is speculative and potentially dangerous due to risk of hypoglycemia. It should only be used under medical supervision for diabetes.