Camphor oil is an excellent disinfectant, insecticide and germicide. It can be added to drinking water to disinfect it, particularly during the summer and in rainy seasons when there is a higher chance of water becoming infected. An open bottle or container of camphor oil, or burning a piece of cloth soaked in camphor oil, drives away insects and kills germs. A drop or two of camphor oil, mixed with a large quantity of food grains, keep those food items safe from insects. Camphor is also used in many medical preparations such as ointments and lotion to cure skin diseases, as well as bacterial and fungal infections of the skin. When mixed into bathing water, camphor oil disinfects the whole body externally and kills lice or other small parasites of bugs that might be on your body.