Worried about toddler rash

[Whatstherash]

For the past month, my toddler comes out in a massive rash at least a couple of times a week. It only seems to last a couple of hours each time. He gets covered in red hives (the picture doesnt convey the redness, it gets really bad!) and raised bumps. Has anyone seen this before? Its only on his face, hands and mostly legs and doesn't itch or bother him at all. The GP said it's fine and just one of those things, but every time itseems to get worse than the time before and his beautiful face looks so bad :(. Any ideas?

Have you tried keeping a food diary in case its allergy related

Does piriton help?

That looks like a mild food allergy to me. Dd's have both done this in response to dairy products but their intolerance is quite mild - a rash only appears when they drink milk that hasn't been cooked/processed in any way.

My daughter had a huge hives reaction once (on holiday in Spain, we took her to hospital). She did get allergy tests which found dust, pollens etc. I think she is sensitive to lots of soaps etc too. She now is on daily piriton.

Thank you for your responses. I can't find a common trigger food-wise. Yesterday it happened before lunch and he hadn't eaten anything since breakfast 4 hours before. I imagine a food allergy would be faster?
The common trigger really is being outdoors. It pretty much happens everytime we are outside for a good amount of time. It has also been happening since he got stung by a bee, which is a weird coincidence. I think I'll get some piriton.

That looks like a reaction to something. Definitely try piriton. I hope you work out what it is!

Our consultant said allergies can also be worse in sunlight due to interaction with uv. Does sound quite similar to my daughter, she's reacted at being outside since a young age. She was tested for about 20 allergens, i imagine she is allergic to many more than that. But not a single food allergy. Even the nurse doing the tests wanted to test for nuts, but she doesn't react at all.