Hi Doctor ,we Have My Baby Boy Born At 27

Hi Doctor ,we have my baby boy born at 27 weeks he has had bleeding of the brain
Second and third grade
The lateral ventricles are filled with fluid
It seems that the canal going from third to the fourth is
Blocked the head is slowly start to swell
Should we be forcing for an Mri to determine exactly
What is causing the blockage
They seem to thinks it's blood clothes that have harded and narrowing passage
Is there a medication or herbal that would be able to dissolve this blockage
Would aspirin work
What to do to unblock the passage
Is there anything before installing a shunt
Please help in any way possible thanks