No, diesel engines don't have ignition coil as they work on compression ignition and not on spark ignition as in diesel engines. Glow plugs used in diesel are like small electric heaters which use the mechanism of heating due to resistance during electrification.
Walking pneumonia is generally treated with antibiotics. Mild infections are often not treated because they tend to clear on their own. With treatment, most people begin to feel better within a few days. Many over-the-counter medicines used for colds and flus may not help with complete relief of symptoms of walking pneumonia. It's important to talk with your doctor about any medicines you are taking or planning to take.
Pneumonia is a type of lung or respiratory infection that often begins with an innocent cough and turns suddenly into a high fever accompanied by labored breathing. For most people, pneumonia is treatable with prescription medication (in the case of walking pneumonia) with all symptoms vanishing in a few weeks time. However, babies, seniors, and those with other medical conditions, a bout of pneumonia can put you in the hospital with serious symptoms.