Sabar ya mak, I can really feel how tough things are for you right now with your little one's GERD and everything that comes with it. A few of us mums have been through similar struggles with special formula costs, and it's honestly heartbreaking when your husband has to juggle work and hospital runs like that, the financial stress on top of worrying about your child is no joke. Have you also reached out to your local mosque or welfare department (Jabatan Kebajikan Masyarakat) because sometimes they have emergency assistance programs beyond zakat that can help cover medical and dietary needs for children with conditions like GERD? Rooting for your family, and I hope the right help comes through for you soon