Less likely to be the grass as when cut at this time of year it won't have gone to seed and released pollen- usual culprit for hay fever. But lots of trees are in flower now and tree pollen is a major cause of allergies. Could also be something you ate or drank at son's house- some red wines have a lot of histamine.
It's often hard to pin down the cause of hives and other allergies - I had a few episodes of being covered in hives after swimming in the sea and thought there was something in the water. It then happened after getting very cold watching a parade - I mentioned it to GP, who diagnosed "cold urticaria"- I was allergic to cold!
Retiring and living frugally in money from downsizing after years of stress
Equality and Diversity Laws, should these be scrapped??
