Differential Diagnosis for Mild Urticaria over Bilateral Eye Lids
- Single Most Likely Diagnosis
- Allergic conjunctivitis: This is the most likely diagnosis due to the common occurrence of allergies that can cause mild urticaria over the eyelids. Allergens such as pollen, dust, or pet dander can trigger an allergic reaction, leading to urticaria.
- Other Likely Diagnoses
- Contact dermatitis: This condition can occur due to an allergic reaction or irritation from substances like makeup, soap, or other chemicals that come into contact with the eyelids.
- Insect bite or sting: Insect bites or stings can cause localized urticaria, and the eyelids are a common area for such reactions to occur.
- Angioedema: Although typically more severe, mild angioedema can present with urticaria over the eyelids, often accompanied by swelling.
- Do Not Miss Diagnoses
- Hereditary angioedema: A rare but potentially life-threatening condition that can cause recurrent episodes of angioedema, including urticaria and swelling of the eyelids. It's crucial to consider this diagnosis to provide appropriate management and prevent airway compromise.
- Stevens-Johnson syndrome: A severe skin and mucous membrane disorder that can be triggered by medications or infections. It may present with urticaria, but the presence of other symptoms like fever, sore throat, and skin lesions would distinguish it from mild urticaria.
- Rare Diagnoses
- Urticarial vasculitis: An inflammation of the blood vessels that can cause urticaria, but it's a rare condition and usually presents with more systemic symptoms and purpura.
- Erythema multiforme: A skin condition characterized by target lesions, which can sometimes present with urticaria. However, it's relatively rare and typically accompanied by other distinctive skin findings.