My mother is 63 and is in good health. For the past 3 yrs she has developed unexplained allergic reactions. Her symptoms range from having hives, swollen lips, eyes, large welts that are hot to touch and now today, a swollen hand. It seems to be getting worst and more frequent. The longest she went without any symptoms was 1 month. Yet she could not rule out what she had changed in her food intake. She now has hives some almost daily. She takes Reactine but I am not sure it is safe for her to take this so often. Do you have any suggestions? She went for allergy test and they said she is allergic to dust, but arent we all? My mother seems to think that things always get worst when she goes to town( wal-mart and such) which leads her to believe it could be the lighting in large stores. I googled this and I dont find anywhere that fluroscent lights could cause this sort of reactions. Please help as this is getting frightening and I dont want my mom to be limited to her home.