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.
Clarithromycin is another antibiotic treatment for walking pneumonia. It is more powerful than even erythromycin as it is also used to help treat HIV/AIDS patients. It works by interfering with the protein synthesis of bacteria, which prevents them from growing further. It is given in the form of tablets or a gel.
The first thing to do is find out what kind of pneumonia you have. Is it viral or bacterial. If it is viral, the best thing to do is practice proper sanitation, protect yourself from the harsh elements of the environment by using diet and exercise to boost your immune stystem. Do not smoke, if you smoke, quit.