I have an acute upper respiratory infection according to the doctor. Why does my upper back and right shoulder hurts/sore when I cough?

Chest muscles can. easily become quite fatigued & soar from stabilizing your rib cage with recurring coughing. This is probably the most likely basis. Pleuritis, see: http://en.wikipedia.org/wiki/pleurisy is also a possibility & the list goes on & on. Study: https://www.google.com/#q=URI+chest+pain for additional ideas; yet caution to not let imagination/fears run away into rare, highly unlikely possibilities.

Related Questions

I've had a deep whooping type cough for 2-3 months. Now upper respiratory infection with pain. What should I ask my doctor?

URI. Ask if you had adult pertussis (whooping cough), whether you may have had an atypical pathogen (mycoplasma, chlamydia, etc.), whether you now have a new infection and what it may be due to. It would also be a very good opportunity to stop smoking entirely. Good luck and hope you are better soon. Read more...