Cough, blocked or runny nose, and slight fever are usually due to a viral cold affecting the airways. Take proper rest, drink warm fluids, do steam inhalation, and eat light food to help recovery. Keep your nose and throat warm, stay hydrated, and avoid dust or cold exposure to reduce symptoms. If symptoms worsen, last more than a few days, or you develop high fever or breathing difficulty, consult a doctor for proper evaluation and care.