Nancy
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        I have been getting hives every day for the past 6 wks mainly at night.  The doctor said it is idiopathic, which means they don't know.  Zrytec helps.  But do check for food allergies.  I am allergic to the little grape tomatoes which are in season right now.