If you are concerned that your cold and flu symptoms are actually a sinus infection, a surefire way to find out is to visit a board-certified internal medicine doctor like ours at UCare Urgent Care and Walk-In Clinic. Our doctors can evaluate your symptoms and run any necessary tests to provide an accurate diagnosis and effective treatment for your sinus infection. At the same time, if you are unsure if you should be concerned that your cold and flu symptoms are actually a sinus infection, here are some common sinus infection symptoms to provide you with more clarity: • Bad breath • Cough • Decreased sense of smell • Facial pain or pressure • Headache • Post-nasal drip (mucus dripping down the throat) • Runny nose • Sore throat • Stuffy nose