Hello moms! I'm sick and went to the hospital today. They said I need …

Hello moms! I'm sick and went to the hospital today. They said I need drops and antibiotics because my condition worsened. I wanted to avoid antibiotics since I'm breastfeeding, but they told me it's not possible, as my condition has gotten worse. Now I'm home with my baby who cries, calms down then starts crying again. I barely walk, I'm weak. I bought formula, she doesn't drink it, spits it out. She eats breakfast, lunch, snacks and dinner. But she doesn't sleep well without breast milk. I don't know what to do, I feel so bad for my child. I'm afraid she will get stressed. But I also need to be