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 has antimicrobial, antibacterial and anti-inflammatory properties, making it an attractive essential oil for use as a natural remedy for infections. Tea tree oil should never be taken by mouth. Urinary Tract Infection. Urinary tract infections, or UTI's, affect the bladder, kidneys, ureters and urethra.