Internal Medicine is the medical department that first addresses common symptoms and diseases such as colds, influenza, inflammation, headache, dizziness, chest pain, abdominal pain, abdominal bloating, vomiting, gastroenteritis, gastric and duodenal inflammation, gastroesophageal reflux, cough, asthma, bronchitis, difficulty breathing, rash, thyroid and endocrine disorders, and allergies.