My daughter was just diagnosed with having solar urticaria. She has been breaking out in hives for as long as I can remember. I didnt really think about it til recently though when she has been outside more and the hives kept coming back or didnt go away. She was breaking out before though and she wasnt in the sun.She is also allergic to a few different meds. I am lost and dont know what to do how can I make a four year old stay in the house? Does this go away? The doctor did answer some questions but pretty much told me what site to go to and search so I get a better understanding.She was put on claritin and told to take prednisone for a few days til the hives went away. How bad is this?>Does it get better or worse?