My 3 children and me have RSV....respiratory syncytial virus

I am a pregnant 22 year old with a 5 month old, 4 year old and a 1 1/2 year old child and we ALL have RSV. I am just curious as to what I can offer my children that are age appropriate for their sore throats. I have been using warm salt water to gargle with but my 5 month old can barely sleep anymore his cough is that bad. Please let me know what I can do for my children. Thank You!