It usually starts in the nerves farthest from the brain and spinal cord -- like those in the feet and hands. Then it may move up into the legs and arms. However, if you get treatment for the medical condition causing the nerve damage, you may be able to stop the damage -- and even reverse it.
If swallowed, tea tree oil can cause varying side effects ranging from drowsiness, upset stomach, vomiting, nausea and weakness, to coma, hallucinations, blood cell abnormalities, confusion and ataxia which affects muscle coordination and your ability to move voluntary muscles, states the American Cancer Society.
Tea tree oil faces ban over health fear. Tea tree oil faces ban over health fear. Tea tree oil, the increasingly popular remedy for everything from spots to insect bites and vapour rubs, is under threat of being banned by the European Union. The EU has said that even small amounts of the undiluted oil could be unsafe and unstable after clinical trials found users risked rashes and allergies.