Our innate immune system responds very fast to anything foreign that enters our body. When something gets past our skin, like through a cut, our immune cells work to find the intruder and to alert each other of the foreign object. Small immune cells bring other cells from all over the body to the site where the foreign object was found. Other immune cells can send out messengers to cells nearby to have them help attack the foreign object. This process can make our skin look red and feel hot. A certain type of cell called a phagocyte eats anything foreign or dangerous that enters your body. This response is called non-specific because it responds the same way to anything foreign that enters your body from germs to a piece of dust.