The face feels hot but not feverish usually has the following two major causes: 1, because the body sympathetic nerve overexcitation, in the human excitement and tension or focus on too high when the body will start to secrete too much adrenaline and cause excessive expansion of capillaries, feel hot face but not fever, at this time can not be dealt with, let the mood calm, gradually relax down the nervous nerves, observe 30 minutes can be self-relieved. 2, belongs to the initial stage of infection, when the body produces inflammatory reaction but does not immediately start the immune response, The initial stage of infection, when the body produces inflammatory reaction, bacteria, viruses or atypical pathogens and other toxins invade the body but do not immediately start the immune response, then you will feel the face and the end of the conscious hot but not fever, then you need to drink a lot of warm water and observe the situation, pay attention to bed and more rest to increase the body’s immunity.