I ve had a dry, non-productive cough for about 6 weeks or so. It feels like a tickle at the back of my throat. It s sometimes worse at night. My doctor placed me on antibiotics for 10 days, and it got a little better, but I still have a cough that interrupts my work (conversations, meetings) and my sleep. My doctor said he may need to do a check xray even though my lungs were clear. I ve never smoked and have no smokers in my family or at the workplace. I do have GERD, but otherwise am healthy. I m a 63-yr-old woman. Any advice?