Concentrated sodium extravasation according to the extent of extravasation, and whether the local is accompanied by serious injury, the clinical can take different treatment methods: a. If the patient is infused with a small amount of concentrated sodium extravasation because the patient’s blood vessel wall is thin and less elastic, which only causes local swelling and pain, the patient needs to immediately change the infusion site, local topical application of 50% magnesium sulfate, Ruyi Jinhuang cream. At the same time can be taken orally MaiZhiLing, can promote the local extravasation of concentrated sodium absorption faster, to avoid local exudate repeatedly stimulate the blood vessels and cause obvious pain symptoms. Second, if the amount of extravasated concentrated sodium is more, the patient has obvious swelling, elevated skin temperature and severe pain. At this time, if the patient does not significantly reduce the local pain symptoms by applying external medication, surgery may be considered to remove the local swelling. Surgery can be considered to remove the local swelling, reduce the pain and avoid serious infection.