If they aren't getting infected, they sound a lot like hot spots to me, but they look really inflamed. It doesn't seem urgent; if they don't get worse, you could always ask the vet about it next time she has a check up - or, bare minimum, call the vet and ask what they suggest for hot spots. I think my vet suggested hot spot spray, but that just made the skin even more irritated on my dog, and I would also hesitate to use spray on something I wasn't positive was a hot spot. I think my vet also suggested benedryl, since they are caused by allergies, which helped a lot in my dog's case. If you try that, definitely call your vet and ask how much to give since it varies based on weight.