5month old with the flu

I just came back from the hospital with my daughter, she's 5 months old, doctors said she has the flu. I'm so upset because I feel like I can't do anything for her. She's sleeping now finally but when she wakes up & I see her in pain it breaks my hearts. Doctors prescribed some medicine but is there anything else I can do at home to help her feel more comfortable, I wish she can talk to tell me what she wants or doesn't want. I hate seeing my baby like this! I've been crying all night with her 😢😢