Sometimes dogs chew their paws due to contact allergies. Our dogs lick and chew their feet when certain grasses are dropping pollen. I've also known dogs that had allergies to carpets or the soaps that were used to clean the carpets.
How badly are your dogs chewing, Babybear? Are they damaging their pads?
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."