Section Quiz. 1  Participants do not know they are part of a study. 2  The researcher has no control over who is in the study. 3  It is larger than an ordinary sample. 4  Everyone has the same chance of being part of the study.
That's right, the ringing you are hearing in your ears right now is at least partly related to the foods you ate earlier today. Yes, food allergies really can cause Tinnitus or make your existing symptoms worse.
The symptoms of sinus infection and allergies can be similar. Both can cause symptoms such as runny nose, congestion, headaches, nighttime cough, and difficulty breathing.You are more likely to have a sinus infection if you have fever, colored nasal discharge, and facial or sinus pain.he most common symptom of sinusitis, and often the most unpleasant, is pain. You have several different sinuses above and below your eyes, and behind your nose. Any of these can hurt when you have a sinus infection. Inflammation and swelling in the sinuses causes them to ache with a dull pressure.