I Am A 46 Year Old Female, Small Framed. I

I am a 46 year old female, small framed. I have a bad sinus infection and on antibiotics, cough medicines, decongestants. Today, my ribs on my right side right under my breast began hurting constantly and severely. Could I have pulled a muscle, fractured a rib, etc? What can I do for the pain. It hurts all the time but worse when I cough or blow my nose. When I cough it is a sharper, jabbing pain. When it breath it also hurts. Do I put heat on it or an ice pack, and what can I take for relief?