After the saline face, generally do not have to wash. Saline belongs to a concentration of 0.9% sodium chloride solution, is an isotonic liquid, at the same time the pH value is close to neutral liquid, so the skin caused by the stimulation is generally relatively small, even if you don’t have to wash and don’t worry about affecting the health of the skin. However, saline is not recommended in the normal condition of the skin as a care, as long as there is an abnormal state of the skin is recommended to use, such as dermatitis, edema, vesicles, and oozing, etc., you can use saline wet compresses to promote the oozing of trauma as well as drying to reduce the exudation of a good astringent as well as anti-inflammatory effect. In addition, the use of saline, there are certain contraindications, it is recommended to consult a specialist before use, do not operate blindly, so as not to damage the skin.