Redness and stinging on the face may be caused by skin allergy, dry skin, sunlight irritation and other conditions. 1. Skin allergy: If you have recently used poor quality cosmetics, or the skin on your face comes into contact with allergens such as animal hair, dust, plasters, etc., it may cause an allergic reaction, which is manifested as redness, swelling, pain, itching and other symptoms on the skin of your face. 2. Dry skin: If it happens to be in winter, due to the dry air, it may lead to dry skin on the patient’s face, which may cause capillary dilation or rupture, and the skin on the face will be painful and uncomfortable. 3. Sunlight irritation: If the patient does not pay attention to sun protection, the skin on the face is exposed to ultraviolet rays for a long time, it may be due to sunlight irritation, resulting in redness, peeling, stinging and other phenomena on the skin of the face. There may be other reasons for the redness and stinging on the face, so it is recommended that the patient go to the hospital in time to get a clear diagnosis and strictly follow the doctor’s instructions for treatment.