Side effects that may occur while taking this medication include: Nose irritation or burning, Bleeding or sores in the nose, Dry or sore throat, Cough, Pain, Swelling, Burning, itching, or irritation in your throat, Lightheadedness, Upset stomach, Cough, Hoarseness, Dry mouth In case of any of the following serious side effects, contact your doctor immediately: Severe or ongoing nose bleed, Sores in the nose that won't heal, Wheezing, Trouble breathing, Vision problems, Fever, chills, body aches, or other flu symptoms