How can i cure pneumonia at home? cannot afford doctor's appointment or buying expensive medicines?

You cannot know if you have pneumonia without seeing a health professional. But if simply not possible and symptoms are typical (fever, cough usually producing sputum, often chest pain, sometimes breathing difficulties), azithromycin usually would be effective. A standard regimen is 500 mg intially, then 250 mg daily for 4 more days. But do try to get care, especially if fever or short of breath.

Have a COVID-19 test,rest,drink fluid, monitor temperature and breathing. Please seek care at a Public government clinic.