Dr Ramya Shrideep N | ENT, Sleep & Cosmetic Surgeon 🔵 on Instagram: "Types of Angioedema – Know the Difference! Allergic Angioedema: Triggered by allergens like food, insect bites, or medications. Hereditary Angioedema (HAE): A rare genetic condition caused by low levels of C1 inhibitor protein. Drug-Induced Angioedema: Common with ACE inhibitors used for blood pressure. Idiopathic Angioedema: Cause unknown; often recurring. Acquired Angioedema: Usually in adults; may be linked to autoimmune is