Redness, itching and stinging of the face may be caused by sunburn, contact dermatitis or rosacea, and need to be analyzed on a case-by-case basis. 1. Sunburn: When the skin on the face is exposed to the sun, after a long period of exposure to the sun, it leads to skin damage and produces an inflammatory reaction, triggering the symptoms of redness, itching and stinging of the skin on the face. 2. Contact dermatitis: If unqualified cosmetics are used, such as lead, mercury, alcohol, fruit acids and other substances in cosmetics are excessive, which can stimulate the skin to cause inflammation and make the face tingling, itching and red. It is also possible that the patient is allergic to a certain or several ingredients in cosmetics, and an allergic reaction occurs, resulting in redness, itching and tingling on the face. 3. Rosacea: Erythematous capillary dilatation type This type is characterized by the symmetrical occurrence of erythema in the middle of the face, especially in the nose, cheeks, forehead, jaw and other parts, often accompanied by dry, burning or tingling sensation of the skin. Redness, itching and stinging may also be caused by other diseases.