RSV Treatment?

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So my 17 month old son got diagnosed with RSV today at urgent care and is absolutely miserable. He hasn’t eaten anything but still has been drinking milk from his sippy cup. He’s had enough wet diapers so I don’t think he dehydrated.

It gets really bad at night when his cough wakes him up. Is there anything I can do to make him more comfortable?

-I’m pushing any and every liquid I can

-rotating Motrin/Tylenol

-vaporizer

-zarbees cough and mucus meds

-we’ve taken in the bathroom and let the hot shower run.

I plan on taking him to the pediatrician tomorrow to follow up but in the mean time I just want to make him comfortable and not in pain.