Why did my face get a million little bumps and my eyelids are super dry? (Photo)

The other day I was at the airport and I got extremely hot and every now and then my face will get really hot and red but it only happens when the seasons are changing (Really weird) and so anyways I got really hot and then my face literally became covered in little bumps. But I don't have acne. What can I do to clear this up ?

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