Hey there Whirlibird, I just recovered from a cold and my wife still struggles with it.
What I learned in the last couple of years is start treating yourself early. This time I started with some saline nose spray right when I felt I was getting sick because I read this prevents the buildup of the virus / bacteria in your nose.
Often the mucus from your nose gives you the sinus infection and cough later on. I did this for 3 days along with eating plenty of fruits and vegetables and resting and almost didn’t get any major symptoms. After I was getting better again my wife got it and she didn’t really care too much about it first and now she has a pretty bad cough and had fever the days before.
Just my personal experience with it. Hope you get better soon!
Alea iacta est ("The die has been cast")