My little one has RSV and nasty coughing fits

Hi guys, as the above states, my little one has RSV, and she has nasty coughing fits. Has anyone been through this and what can we do to help her with the coughs? It is really annoying her but breaks my heart to see her suffer with the coughs like this and she is 3 days away from being a month old.

Any help or advise is hugely appreciated!

Thanks!