Pneumonia includes many types, common such as bacterial pneumonia, mycoplasma pneumonia, viral pneumonia, etc. Different pneumonia treatment time is not the same, usually in 5 to 7 days, some cases need a longer time. 1. Bacterial pneumonia: common Streptococcus pneumonia, preferred penicillin anti-infective treatment, symptomatic supportive therapy, mild and moderate patients, the course of treatment is generally in about 5 to 7 days, the course of treatment can be appropriately prolonged in patients with more severe pneumonia or pneumonia such as Staphylococcus aureus infection, some severe patients can reach more than 3 weeks. 2. Mycoplasma pneumonia: antibiotic treatment preferred macrolides such as erythromycin, etc., the course of treatment is generally 14 to 21 days, stopping the drug too early is easy to relapse, assisted by symptomatic treatment. 3. Viral pneumonia: treatment is mainly symptomatic, such as influenza virus can use oseltamivir, more use 5 to 7 days. Pneumonia need to identify the specific causes, under the guidance of the doctor targeted treatment. The above drugs should be used according to the doctor’s instructions, not self-medication.