The innate immune system responds very quickly to anything foreign that enters the body. When something gets past the skin, as through a cut, the 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 the skin look red and feel hot. Phagocyte cells eat anything foreign that enters the body. This response is called non-specific because it responds the same way to anything foreign that enters the body from germs to a piece of dust.