What does the term urtic mean?

Urtic is a medical term derived from the Latin word "urtica" which means nettle. In medical contexts, urtic refers to skin lesions often known as hives or welts. Hives are itchy, swollen, and slightly raised areas on the skin that appear as individual bumps or sometimes coalesce into larger patches. Urtic typically develops as a response to an allergen or histamine release.