My Australian son in law first told me about Tea Tree oil. He said that British scientists were intrigued that Aborigines in the New South Wales area had unusually healthy skin, and when they investigated further, they learned that the natives considered certain waters to be “magical”, and they bathed in them regularly. The trees surrounding these bodies of water were Tea Trees. As the leaves decomposed in the water, the beneficial oils were released.
The scientists discovered that tea tree oil was such an effective agent at killing infectious diseases, they put it in military first aid kits during WW1. It was a soldier’s first line of defense against jungle rot.
My sister in law, who lived in England said that her kids stopped bringing home head lice once she began to wash their hair once a week in shampoo laced with tea tree oil. I’ve also used it many times on my dog as an effective flea shampoo, as well as regular skin infections.
http://www.scabies-treatments.net/does-tea-tree-oil-kill-scabies-mites/
This website says to use tea tree oil in addition to whatever treatment your doctor prescribes for the scabies. It can’t hurt, and most likely would help.
The article says to soak in the water, but keep in mind that it’s an oil and floats on top of the water. It will adhere to the skin as you enter and exit the water. Try to just pat yourself dry so you leave as much on your skin as possible. In spite of what it says in this article, tea tree oil is not that expensive. You can find it at most any health food store.