Rsv tips

Our 3yr old got RSV from daycare, she’s on day 5 and feeling better finally. I’ve done everything to try to prevent the baby from getting it, but I’ve been home alone during the day while my husband was at work with a sick toddler and baby. Today he started showing sxs of it (stuffy nose, mild cough). I’m pretty scared considering how sick my 3yr old was (103 fever, nasty cough) and he’s so little 😞 any tips during this for the baby? Obviously saline, suction, humidifier. I am EBF so hoping my milk helps too..