Please help ludwig

Ludwig is less than a year old and hasn’t been delt the best set of cards. He has an eye infection and come down with  pneumonia. I’ve been to the vet 8 times in the last 3 weeks and the vet bills are piling up. I’ve tried multiple medications and nothing seems to be helping. It’s taken swollowing all my pride to ask for help but I’m not sure what else to do. They want to keep him for a few days for fluids and IV medication but I can only afford one night, ludwig is my baby and the thought of losing him is breaking me I’m so scared. I just want to see my boy get better. Anything helps aswel as love and prayers for this baby thank you