Despite comprehensive testing, doctors are unable to determine the cause of chronic hives 80 to 90 percent of the time. The good news is chronic hives is less difficult to manage now compared to 20 years ago. The key is knowing your trigger points.
This might be difficult when the weather is nice, but sometimes the best way to treat allergy symptoms is to avoid allergens to begin with. So when the pollen count starts to rise, try to keep your kids indoors as much as possible.