My DS is 17mo and the last ocuple of days has developed a hive-type rash on his hands and feet a couple of hours after getting up. The 'blobs' change shape and join up over the course of an hour or so and then seem to disappear on their own after max 4 hours. They are on the backs of his hands, tops of his feet/ankles with a few up his legs. They don't seem to bother him. His face has also been a little more blotchy than normal at the same times, but no hives.
At first I thought they were some kind of bite, but think I have ruled that out as a cause. I am thinking its an allergic reaction of some kind to something he is in direct physical contact with, but I just can't work out what. No new cleaning products etc, we have a cat but have always had one, he didn't eat anything new and in any case I wouldn't expect a strong reaction on his feet.
He has had a nasty d and v bug very recently so I wondered if it could possibly be connected to that, but again, it's where it is that is odd.
Does anyone have any ideas. I will probably take him to the GP if it seems to be getting any worse or lasts much longer not that I am suggesting that Dr MN isn't sufficient diagnosis of course. Maybe I am barking up the wrong tree with the allergy thing so open to all suggestions.