6 year old all white American Bulldog. When she was in the shelter the vet said she needed hypoallergenic food and they were feeding science diet. She has the bumps all over like dried up crusty zits that are shrinking. If you mess with them you can get the crusty part off very easily and it doesn't bother her at all. No itching, no chewing, no licking. She drug her chest and belly on grass/carpet/dirt and now her chest is an angry inflamed red patchy color but again - no licking, chewing, scratching or even noticing it's there.
On her belly, chest, armpits, and inside hind legs even into the hair her skin appears to be flakey, like if you get a sunburn, it heals, but is still flaking off very slightly. She doesn't appear to have any sun damage.
She's not on any kind of medication to suppress allergic reactions. When she's at rest her skin is a light pink color, and when she gets riled up she flushes bright red, including inside of her ears and around her mouth and eyes. She does not have any kind of strong odor, just smells a bit like a dog that needs a bath after being in the pound.
Any ideas? Pictures later today.