Can anyone make a suggestion for oils for puppies that seemed to go into littermate syndrome and excess aggression following their first vaccines. She vaccinated them minimally, but it has definitely disrupted them. They are 10 week old border collie sisters. We have split them up between my home and my daughters and are trading them off each week with each other. They do much better separated, but just wondering if anyone has oil suggestions. I have used lavender on their paws - diluted, and it is very calming to them. I let them sniff it first - they LOVE it. I would love to get to the root and help their little systems go back to normal, not just treat their symptoms. I am also looking at homeopathy for them.