If the body experiences persistent coughing that does not heal, and the hospital examination rules out pertussis, you can suspect it to be a pertussis-like disease if the symptoms are similar. This type of disease generally also requires the selection of sensitive antimicrobial drugs and appropriate cough suppressants. Expectorant medications provide symptomatic treatment. With active and formal treatment, recovery generally occurs within about one to two weeks. It's important to maintain a positive mindset, and pay attention to appropriate indoor temperature and humidity, drink plenty of water, and if there is excessive phlegm, choose medication to dilute the phlegm. Oxygen can also be administered during the acute phase to relieve symptoms of tissue hypoxia.