For about two months now, I've off-and-on had some sore spots on my toes. They feel almost like blisters, but they aren't blisters, open sores, etc; only slight reddish areas that get darker red if pressed on. They went away and came back again. The skin above some of them is dry and rough, almost like a callous.

For about two months now, I've off-and-on had some sore spots on my toes. They feel almost like blisters, but they aren't blisters, open sores, etc; only slight reddish areas that get darker red if pressed on. They went away and came back again. The skin above some of them is dry and rough, almost like a callous.
Sounds like a planters wart

No, I've had plantar's warts; that's not what it is. The skin is completely unbroken and not hard like a wart. Any other ideas? The last flare-up (a bit of pain) was just over the weekend, and now they're feeling better. They all seem to do it at the same time.