What if the face is red and hot?

The face is red and hot, which may be caused by facial dermatitis. Because facial dermatitis is generally allergic, or facial capillaries dilate, forming local redness and fever on the face. In addition to allergic factors, it may also be irritating dermatitis, including facial recurrent dermatitis, and this kind of facial redness and fever may also occur. There are also factors of infection, and these situations may also occur. Usually, the factors of infection are generally bacterial infection and viral infection. Bacterial infection is generally like scarlet fever or local high fever after infection in other parts. It could also be a virus infection. Virus infection is generally common in virus eruption, and after the attack, the face will be red, swollen and hot.