Hi Cactus,
We haven't changed anything around Hondo lately, only thing is that the weather is hot, so he sleeps in the dirt or under a tree a lot. We have checked for wandering dew under there but nothing. He sleeps on bare dirt.
My partner is going out today to buy an above ground outside dog bed and will put it in the shade on top of the dirt where he normally snoozes.
Natural remedies...I read that omega 3 is good for them. I work at Heinz, who produce Greenseas so thats no problem in giving him tuna most days.
We have an Elizabethan collar, but being a Ridgeback, he is very flexable, and can still just reach the sores with his toungue. They are just near his tail, but on his thigh muscle.