I just completed 20 days of antibiotics for a sinus infection, upper respiratory infection, and bronchitis. The coughing has drastically reduced in the past three days, and I am beginning to feel much better. However, I am now experiencing sharp pains on both sides of my lower rib cage. Is this something I just need to wait out, or do I HAVE to go see my doctor, again? I d rather not, if it s not needed. I am one of just a few teachers trained to administer high stakes standardized testing at my school this entire week.