Patient's question:
The recent weather has been unpredictable, with fluctuating temperatures. I may not have paid enough attention to adjusting my child's clothing, which led to him getting a fever. He was given intravenous saline for several days, and the fever subsided, but he still has a runny nose and constant sneezing. At night, he also experiences nasal congestion. Even after taking medication, it hasn't helped much. The doctor said it's a upper respiratory infection.What kind of help is needed: What are the causes of my child's upper respiratory infection, and how should it be treated?
Doctor's answer:
Upper respiratory tract infection refers to the general term for acute inflammation between the nose and larynx, and is the most common infectious disease. Approximately 90% of cases are caused by viruses, with bacterial infections often following viral infections. This disease can occur in all seasons and at any age, spreading through droplets containing viruses, or via contaminated utensils due to industrial pollution. It often develops when the body's resistance is weakened, such as during exposure to cold, overexertion, or getting wet. The existing or externally introduced viruses or/and bacteria then rapidly grow and adapt, leading to the infection. The prognosis is generally favorable, with the disease being self-limiting and typically resolving within 5-7 days. It may lead to complications such as bronchitis, pneumonia, or sinusitis. In some cases, it can also cause secondary conditions like acute myocarditis, nephritis, or rheumatic fever.