Any ideas?
Ds has got urticara on his tummy. He gets is at this time every year. He has had a peanut butter sandwich on seeded bread, but he has had that several times this week, and has only started having peanut butter this year (he is 3), yet always gets urticaria this time of year, ever since he was 1.
I have treated it with an antihistimine, but any ideas as to what is causing it?