Tracheitis is an inflammation of the trachea caused by viral or bacterial infection. Common causes include Staphylococcus aureus, Streptococcus pneumoniae, Hemophilus influenzae, and Moraxella catarrhalis. Symptoms include a dry, then productive cough, substernal pain, fever, difficulty breathing, and wheezing. Diagnosis involves cultures of tracheal secretions and imaging tests. Treatment focuses on antibiotics for bacterial infections and supportive care with cough suppressants and fever reducers.