Prathyusha Savjani, MD Allergist on Instagram: "Eyelid dermatitis is one of the most frustrating rashes I see—and one of the most misunderstood. If your eyelids are red, itchy, swollen, or flaky and everyone keeps telling you to “just take an antihistamine,” here’s the truth: antihistamines don’t treat eyelid dermatitis. This type of rash is driven by skin inflammation and contact reactions, not histamine. That’s why medications like Zyrtec, Allegra, or Claritin usually don’t help—no matter how