My ds has broken out in hives today, straight after playing on the grass in the park. He was the same two weeks ago, when my friend looked after him, but the doctor had suggested that the most likely culprit was their cat, as I'm also allergic to animals. She said that when he gets hives it's fine to give him Piriton, but I don't want to have to dose him up all summer They are all over his face and chest. I suppose it's possible it's not an allergy at all, but they are red spots that came up incredibly quickly and feel hard underneath iyswim. It wouldn't have come out before now as we don't have a garden at home