I learned my lesson the hard way today. Brutus was itching his neck area, so I'm thinking the little bit of tea tree oil in his shampoo helps with an itchy dog, I have pure tea tree oil in a bottle. I'll put some on his neck. WRONG!!!!!! I did this at 8pm last night. This morning he woke up and couldn't walk. His hind legs were very hard for him to move. I searched the internet at 6am while I was waiting for my vet to call. Found out it is highly toxic to animals, and is like applying turpentine to their skin! It has a neurologic effect on them. OK, so he didn't itch all night, THAT'S BECAUSE HE COULDN'T MOVE!!! Poor Brutus! I met the vet at his office for IV therapy and monitoring. But by that time, it seemed the neurologic effects were starting to wear off. Brutus was able to walk much better than first thing this morning. His bowel and bladder were working. The vet examined him and decided he's a big boy, he seems to be overcoming the effect. He didn't think an IV was necessary. He discharged Brutus home to me, his very stupid mother, and wants me to encourage Brutus to drink water so he can keep flushing his own system. I've added chicken broth to his water dish, and he drank some, but right now he's so exhausted from the ordeal, he wants to sleep. I washed his skin off with mild soap and water where I had applied the oil. The vet gave me a gentomycin spray that will help with the itching. I'm writing this out of true embarrassment and GUILT. But I'm hoping to warn other animal owners to learn from my stupidity. DO NOT USE TEA TREE OIL ON YOUR ANIMAL....NEVER! I will keep you all updated as to how he's doing. My vet wants me to bring him in on Friday for a bloodtest/chem profile, to make sure his organs are functioning well. I will do whatever I have to for Brutus. Including trying to teach others to learn from my stupid stupid mistake!