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 symptoms of walking pneumonia usually last between one and three weeks. Although the term mild is often applied to this illness, that doesn't mean the symptoms of walking pneumonia aren't bothersome. Cough and congestion are common; they just may not be bad enough to keep you in bed or cause you to seek treatment.