struggling financial while son battles cancer

Forest our oldest son 8years old has been diagnosed with brain cancer. He has went through many surgeries and still the tumor remains. We have taken such a financial hit from this tragic event. My wife had to leave her job to care for him as well as our other 3 kids. As she battles to find a job that will schedule her around my schedule I am stuck being the only income for 6. Forest is doing well given the circumstances but we just need financial help to get back on top of all these bills. I have merch/hats/donation apps all set up. Thank you for your time