1-What are common causes of nasal obstruction?
Common causes of nasal obstruction include a deviated nasal septum, nasal turbinate enlargement and nasal polyps .

2-What are Enlarged Adenoids and their Symptoms?
If you or your child's adenoids are enlarged, it may be hard to breathe through the nose. Other symptoms of constant enlargement are: Breathing through the mouth instead of the nose most of the time, Nose sounds "blocked" when the person speaks, Noisy breathing during the day, Recurrent ear infections, Snoring at night, Breathing stops for a few seconds at night during snoring or loud breathing (sleep apnea).

3-What are the common symptoms of sinusitis?
Common symptoms of both acute and chronic sinusitis include: Facial pain Tenderness and swelling around the eyes, cheeks, nose and forehead Sinus pressure or congestion Difficulty breathing through the nose Loss of the sense of smell or taste Sinus Headache Yellow or green mucus from the nose Teeth pain Fatigue Sore throat from nasal discharge Bad breath

4-What role does noise play in hearing loss?
One of the most common causes of hearing loss is noise. Loud noise can permanently damage the inner ear. Loud noise also contributes to tinnitus, which is a ringing, roaring, clicking, hissing, or buzzing sound in the ears. Older adults often have hearing loss and tinnitus from a combination of both noise and age.