I've had this very red, often burning hot rash over my nose and cheeks for some time now. I also have a large variety of symptoms such as joint pain and swelling, fatigue, a high positive ANA etc, but no diagnosis (I am seeing a rheumatologist). Recently what was just a flat, red (sometimes purple) "rash" or blush I guess, is now covered in tiny little bumps. Not like spots, but very diffuse over the cheeks. There is none on my head or chin or anything, but the rash (and symptoms) is highly photosensitive. I hate it. It looks awful sometimes.
here are a couple of pics