The problem with Vaseline is the dogs (or cats) lick it off, which is not so good for their digestive system... it is "petroleum" jelly after all.

better to work with the booties... the pooch will get used to them. I still remember my greyhound the 1st few times she wore them - bless her heart, I never laughed so hard in my life. This beautifully elegant creature walking like a clown in big clown shoes

Good luck with your pooch!