Indorex is a household flea spray that can be used to treat infestations of fleas in the home. It is important to read the instructions on the packaging before using Indorex, as it should only be used in certain areas of the home and not on carpets or upholstered furniture. When using Indorex, you should start by vacuuming the entire house thoroughly to remove as many fleas and their eggs as possible. Once this is done, you can then focus on spraying Indorex in specific areas where fleas are likely to hide, such as in cracks and crevices, behind skirting boards and under furniture.