Let's take a closer look at the setting. What is Setting? You probably remember from grade school that the setting is where the story takes place, like the woods or Grandmother's house. Actually, the setting of a story tells the time, place, and duration of a story and is told using techniques like imagery. Time
Common foods may be the cause, as well as bee or wasp stings, or skin contact with certain fragrances. Acute viral infection is another common cause of acute urticaria (viral exanthem). Less common causes of hives include friction, pressure, temperature extremes, exercise, and sunlight.
About half these cases are associated with some immune findings. Chronic hives may also be associated with thyroid disease, other hormonal problems or, in very rare instances, cancer. Even this condition usually dissipates over time. Physical urticaria. In physical urticaria, the hives have a physical cause, such as exposure to heat, cold or pressure. Common triggers include: Rubbing or scratching (simple dermographism). This is the most frequent cause of physical urticaria. Symptoms appear within a few minutes in the place that was rubbed or scratched and typically last less than an hour.