It can be used to treat inflammatory diseases such as upper respiratory tract infections and pneumonia, where patients have cough, phlegm, sore throat, and fever. For urinary system infections, lobelia also has a good therapeutic effect. Patients manifest frequent urination, urgent urination, painful urination, and some patients may also have hematuria or cloudy urine. For infections of various systems, lobelia has a good anti-inflammatory and analgesic effect due to its own effect of clearing heat and detoxifying. Modern research has also confirmed that some substances contained in lobelia have strong antibacterial activity for human body, not only for Staphylococcus aureus, but also for Escherichia coli and Klebsiella pneumoniae, all of which have good antibacterial activity. In addition, lobelia has a very good effect of promoting water and reducing swelling, and has a therapeutic effect on edema caused by various reasons, such as ascites caused by liver cirrhosis or chronic liver injury, and even ascites caused by tumors.