The symptoms of cough appear using many drugs, which only improve after the use of azithromycin. In clinical practice, the most common is bronchitis and pneumonia due to pathogens such as mycoplasma and chlamydia, with a pronounced, persistent, irritating cough, and a dry cough without sputum, but also a wet cough with a more viscous, less sputum. Pathogens such as Mycoplasma and Chlamydia are more sensitive to macrolides, such as azithromycin, and are ineffective for other antibiotics, such as cephalosporins and penicillins, which is why the cough does not heal for a long time when a macrolide such as azithromycin is used to have relief.