Cold/sick during pregnancy?

Nelofarr
Anyone have any remedies that won't harm baby and actually work? I've got a horrible sore throat and tons of mucus (sorry TMI) I live with some family still and one of them for sure is the cause of this. My brother has a cough and I want to reverse this and take care of it before it could manifest as pneumonia. I had it when I was little and nearly happened again last year during forest fire problems and my asthma on top of getting a cold. -___-"