Red, burning skin?

I did a search but didn't come up with anything... Does anyone else get these?

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My limbs or face will suddenly turn bright red and hot to the touch. At first they were rare and about the size of a deck of cards. Now they're almost daily, painful, and HUGE. Any thoughts?

I get this on my face… its horrible. But I have always assumed it was some kind of allergic reaction… sorry I cant help though (I dont know what it is im afraid)

I'm prone to these sort of rashes. They are better now that I'm on a gluten free diet but still flare up now and then.

I'm (mostly) gluten free... This one happened on a night where I'd had no gluten that day. It covered my shin from ankle almost up to my knee.

I only tend to get them on my limbs and face. I got one on my back/shoulder once. I'm not sure if it's Raynauds but I doubt it. I think it's more an allergy or rash. We've switched to an allergen-free detergent and softner and that hasn't helped. I'm glad I got the picture - I'll bring it with me to my GP appointment tomorrow.

Thanks everyone!