If the patient has cough, expectoration and pharyngeal pain, it is necessary to actively improve the blood routine, virus antibody, mycoplasma antibody, chest X-ray, sputum culture and other related examinations, because many pathogenic factors can lead to the above symptoms, such as clinical common bacterial infection, virus infection, atypical pathogen infection can lead to the above symptoms, and further improve the blood routine, After C-anti protein, chest X-ray and other examinations, it is clear what pathogenic factors are causing the diagnosis. In case of bacterial infection, white blood cells will increase, lung markings will increase, and c protein will increase. Antibiotics can be used after the diagnosis is clear. The commonly used antibiotics in clinical practice include the first, second, and third generations of beta lactams, or synthetic and semi synthetic penicillin. If β - lactam drugs are allergic, quinolones or macrolides can be considered. Common drugs include azithromycin, levofloxacin, etc. If the patient's viral antibody rises, it is considered that it is caused by viral infection, and only needs heat clearing and detoxification and symptomatic treatment. If the patient is infected by atypical pathogens, it is necessary to use some anti atypical drugs, including macrolides, roxithromycin, azithromycin, etc. Different methods can be used for the causes of different diseases, and some local lozenges can also be used for symptomatic treatment.