IVIG transfusions for Corbyn

Corbyn has PANDAS/PANS which is an autoimmune disorder that causes an inflammation of the brain.  Corbyn's family and doctors have tried numerous medications to control this disorder.  But none have been successful.  The doctors are recommending IVIG transfusions, however the insurance company will not pay.  Corbyn's doctors have appealed but the insurance company is still saying no.  
Corby needs these treatments.  The treatments cost $10,000 a month.  The family is trying to raise enough money to fund the first three months in hopes the insurance company will see the success and finally approve the treatment.  Please help this precious family and little boy.