Children’s red and painful face may be caused by trauma, sunburn, contact dermatitis and other reasons. 1. Trauma: If a child’s face is hit by other objects or suffers a violent impact, there will be soft tissue damage manifested as redness and pain. 2. Sunburn: If the ultraviolet rays outside are relatively strong, children play outside for a long time, excessive ultraviolet rays will cause damage to the skin, sunburn, usually a few hours after the sunburn, but also in the rapid appearance of the sun exposure, the main manifestation of bright red erythema, accompanied by pain. 3. Contact dermatitis: children’s faces come into contact with allergic substances, such as the use of poor-quality cosmetics or contact with allergic pollen, an allergic reaction will occur, also manifested as redness, swelling and pain. Children’s face redness and pain, there may be other reasons, it is recommended to consult a doctor in a timely manner, by the doctor to clarify the cause of standardized treatment.