Well then we have tea tree oil and the only dam place it grows is in Australia and they use the tea tree leaves to help treat coughs and also colds and to help to heal wounds and is great for sore throats,plus the tree oil is antiviral and also anti inflammatory and can be used to help with gingivitis p!us can help with some dandruff plus the tree oil can kill oral bacteria and can help with the flu virus and can be used to treat acne too,with less side effects also,and research has shown the oil to have anti cancer activity too.