Scratching red face may be related to allergic constitution, vitamin C deficiency, damaged skin stratum corneum and other factors, which need to be clarified after the cause of medication, general care and so on. 1. Allergic: If you are allergic, the skin on your face is prone to allergic reactions, which can lead to dilation of the skin capillaries, thus resulting in the phenomenon of red face scratching. It is recommended to consult a doctor in time and take oral anti-allergy medication under the doctor’s guidance, such as cetirizine and loratadine. 2. Vitamin C deficiency: As vitamin C is involved in skin metabolism, if the lack of vitamin C, may affect the normal metabolism of the skin, resulting in skin sensitivity and the phenomenon of face scratching. Normally, you can eat fruits rich in vitamin C, such as kiwi, blueberries and so on. You can also take vitamin C tablets under the guidance of a doctor to alleviate this situation. 3. Damaged skin cuticle: Regular use of exfoliating skin care products may lead to damaged skin cuticle and may also cause increased skin sensitivity and redness. Touching the skin on the face may make the capillary expansion and red blood cells obvious, resulting in the phenomenon of red face when scratched. Usually try to avoid the use of exfoliating skin care products, you can use hydrating and moisturizing skin care products to avoid too dry. The face scratches red there may be other reasons, it is recommended to timely to the hospital, under the guidance of the doctor to standardize the treatment, follow the doctor’s instructions to use drugs, do not take care of themselves.