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This is caused by the dilation of blood vessels in the face and neck, which allows blood to rush to the head. This, in turn, causes the skin to feel warm and turn red. Generally, people with fair skin and younger people are most susceptible to hot face and ears caused by blushing.
1 Allergy â Itchiness and redness of the face is often a cause of an allergic reaction to either foods or a facial product. 2  An allergic reaction to strawberries or shellfish, for example, may result in a rash on face. 3  It can also occur due to the use of expired facial products. It can also occur due to inferior facial products and the application of hard and harsh soaps. 2  Dry skin on the face can also occur due to more serious conditions, such as, diabetes and hypothyroidism. 3  Heat Rash â Overexposure to heat and sunlight may result in a heat rash.