Hi. My grand daughter - 15 months old, has hives on forearms, hands, shins, and feet. Also on cheeks. No other symptoms. No respiratory distress. We've given her 2.5 cc of dyphenhydramine 6 hours ago. The hives faded and then we went outside to play. Now they are kind of popping up again on her arms and hands. Do you think she is allergic to pollen that is in the air? My daughter plans to take her to an allergist on Monday but should we be doing anything else for her until then?