My son is low-sodium and restless due to viral encephalitis

My 7 year old son had viral encephalitis, have been treated for 12 days now mainly low-sodium, EEG is not good, restlessness, pull the eye last night, please help me


Patient information: Male 7 years old, Heping District, Tianjin
Disease description (time of onset, the main symptom, etc.):
June 25 children from the beginning drowsiness, convulsions am June 27, was admitted to hospital in emergency respiratory symptoms occurred during the stop, on a breathing machine. The next day morning, sober, do lumbar puncture to develop a virus is found, the basic set of viral encephalitis, take off the ventilator two days later in the pulmonary edema, but also on a breathing machine. Check the low blood sodium, sodium in the fill process, the serum sodium and down, the minimum is lower than 120 top 133 now have been in the Tianjin Children's Hospital ICU.

How do want to help:
Now how can you put up the value of sodium, how this situation encephalitis prognosis, but also how to follow-up treatment. Asked the doctor at the hospital, they always say something ambiguous words.


Condition analysis:
Suggestion:
The principle of treatment of viral encephalitis to ease swelling of brain cells, reducing the intracranial pressure, nutrition, brain cells, symptomatic; also like to correct hyponatremia, oxygen. Children with severe illness, Tianjin Children's Hospital is a very good hospital;