Amenadiel: You know, I just don’t understand it. I’ve never had a human illness before. But sore throat, itchy eyes, a fever… Is it a cold? The flu?

Doctor: It’s chlamydia.

Amenadiel: Excuse me?

Doctor: It’s a sexually transmitted disease.

Amenadiel: Right, but I can’t have chlamydia. I’m an angel.

Doctor: Not to worry. A round of antibiotics and you’ll be back to your, uh, angelic ways.

From Lucifer – Season 3 Episode 12: ‘All About Her’ (3×12)