Getting a bad cold at 24 weeks

So yesterday I started having issues with my throat... pain and drainage mostly. I always take regular allergy medicine, but this morning when I woke up my throat is very sore, my sinuses are all jacked up, and I'm starting to get a cough. What can I safely take to help with these symptoms? Have any of you ladies tried a certain kind of hot tea or anything natural that helps? I am prone to get pneumonia this time of hear (I've gotten it for the last 4 years in August or September) and I thought I was out of the woods. I need to keep this cold from getting to my chest because once it does it will def turn into pneumonia.