Allergic to the sun
Do you recall one of those horror movies where a lead character has that weird disease that starts hurting their skin if they are exposed to sunlight? Guess what? A similar disease is a real thing called urticaria; in simple words, sun allergy.
We wonder if people who live in deserts or middle eastern countries have this condition, how will they survive? They’d probably carry around an itch relief cream rather than a sunblock!