help my mother to fight severe infection

My parents are here in USA to visit us, during this visit my mother went through rough ride, she got multiple health issues, leg and foot got fractured couple of weeks ago , She was recovering from that but unfortunately she caught up severe infection due that we had to rush to emergency, where it's been identified that infection has caused damage to her abdomen, kidney and other body parts as well lowered blood pressure to serious level, which made doctors to put her on life saving medication through her neck to keep her blood pressure stable and cure infection, She is admitted to Intensive Care Unit due to critical situation, As they are visiting us from India, Even though they have visitors insurance unfortunately their visitors insurance doesn't cover these health conditions, As I am the Sole income earner in a house hold, so that I am asking for little help if possible, l will be thankful if you could help us any thing you can to bare the treatment cost. Any help is appreciated. Thank you. Ravishankar