Rsv baby help

Princess

My child went to day care for one week . By Friday the symptoms started . She nearly wants to drink her bottle due to congestion and constantly coughing . My child is almost 6 months next week on Monday . I’ve been giving her pedialyte in a spoon because she will only take it that way . Sucking the snot out her nose with frida snot sucker . Is it any other remedies to help her because i feel like the milk is making more mucus 😩🤦🏾‍♀️