Redness and stinging on the face are considered to be related to sunburn, contact dermatitis, infection and other causes. 1. Sunburn: When exposed to sunlight and ultraviolet rays for a long time, it is easy to cause skin irritation, resulting in redness and stinging on the face. 2. Contact dermatitis: For example, when the skin comes into contact with intolerant and poor-quality cosmetics, moisturizers, sunscreens, etc., it is easy to cause skin allergies. This leads to redness and stinging on the face. 3. Infection: For example, frequent nose picking or picking and squeezing the skin can lead to damage to the mucous membrane of the skin, improper care and the formation of bacterial infectious diseases. This can lead to redness and tingling on the face. If the face has redness and stinging symptoms, it is recommended to go to the regular hospital immediately, under the guidance of specialists to carry out targeted treatment, so as not to cause adverse consequences.