Magnesium sulfate is divided into solution and injection. The injection is mainly used for pregnancy hypertension, pre-eclampsia, etc., the risk of medication is high, usually only used in hospital. The solution has the effect of bile, diarrhea and swelling, diarrhea once a day, once 10-40ml; bile 10ml a day, 3 times a day; swelling reduction with gauze and so on will be applied to the affected area, swelling formation within 48 hours of hot compress, 48 hours outside the cold compress. Generally according to the patient’s specific condition to choose the appropriate use of magnesium sulfate, it is recommended that patients consult a professional pharmacist or doctor.