When the redness returns after washing the face with vinegar is related to the specific condition of the patient and cannot be generalized. Washing your face with vinegar can increase the moisture and nutrition of the skin cells, maintain the luster and elasticity of the skin, and also soften the stratum corneum of the face to whiten and remove spots. However, vinegar itself has a relatively strong irritation, if you wash your face with vinegar for a long time or use too much vinegar at one time, it may damage the facial stratum corneum to a certain extent, redness, itching and other allergy-like symptoms. If the patient’s symptoms are mild, usually pay attention to care for 2-3 days can be recovered; if the patient’s symptoms are more serious, usually about 1 week can be improved. If the patient still can not recover after 1 week, should be timely in the dermatology department for specific treatment. If patients want to use vinegar to wash their face, must pay attention to the concentration of the ratio, to avoid concentration is too large, at the same time, it is recommended to choose the appropriate way of skin care, so as not to cause unnecessary damage.