If there are red dots on the face but not painful or itchy, usually the following factors: First, the most common factor is the infectious factor, because the facial skin is more susceptible to infection, all over the dermis layer of the skin is relatively thin, for bacteria, fungi, viral infection will appear when the face has red dots, red blood oozing, at this time should wash the face with water, but try not to use any skin care products to avoid aggravating the infection. Second, there will be red dots on the face when there is an allergic reaction, such as drug allergies, food allergies, contact allergies, other skin allergies, there will also be red dots on the face. Third, connective tissue diseases, such as dry syndrome and systemic lupus erythematosus, can also appear with red dots on the face. Fourth, infectious diseases, such as renal syndrome hemorrhagic fever, measles, scarlet fever, will also show clinical symptoms of red dots on the face.