Help Lily get her heart medicine

Hi my name is Teresa, I’m doing this to help my sister and niece out. My niece has SVT a heart condition most kids grow out of, so we thought. But she didn’t and it has only got worse. Now she is on her last option of medications or it heart surgery. These new medications are not covered my insurance since it is a compound medication. These new one total up to $500 a month. Lily has gotten her heart restarted way to much for a baby of her age. And it hurts our hearts to see her go through that. My sister already has a lot going on and has 3 other daughters to raise. She would never ask for help but I can not sit and watch her struggle to get the meds that is necessary for my niece. So if you can please help, anything will be greatly appreciated. Happy holidays to all. May God bless everyone