Valerie Bertinelli shared a selfie on Instagram, revealing a red bump on her eyelid. "When your puffy eye with a stye is about to close shut, but you’re still excited to go to work because you love ...

Have you ever experienced the discomfort of waking up to find a painful bump on your eyelid? Chances are, it could be a stye – a common eye condition that, while bothersome, is typically harmless.

Medically reviewed by Johnstone M. Kim, MD Key Takeaways An eye stye happens when bacteria enter the oil glands in the eyelid.Conjunctivitis or pink eye is an inflammation that can cause swollen ...