Measles is not urticaria, and there is quite a significant difference between them. Measles is a skin disease caused by a viral infection and is contagious, with the virus being the measles virus. In contrast, urticaria is an allergic condition that can be triggered by many different causes, varying widely depending on what different individuals are allergic to. Furthermore, the treatment for measles typically involves antiviral and symptomatic approaches, whereas the treatment for urticaria generally entails the use of anti-allergy methods.