If the symptoms of sinusitis are very serious, you can consider the infusion of penicillin, commonly used in the clinic is amoxicillin injection, before using the drug need to do a skin test, to ensure that the patient is not allergic to this kind of drug. Sinusitis patients often because of their own rhinitis or cold induced, the patient manifested as the nose is not ventilated, or even fever, the flow of yellow pus nasal discharge, the application of penicillin drugs can effectively play a bactericidal, anti-inflammatory, the role of swelling, can improve the patient’s nasal ventilation, to reduce the patient’s flow of yellow pus nasal discharge symptoms. It is recommended that the patient infusion for about a week to observe the changes in the condition, if the symptoms during the medication have obvious improvement, you can consider replacing the oral penicillin treatment, can also effectively play a bactericidal role, clinically commonly used is amoxicillin capsule.