Thick nasal mucus in the left side of the nose after two years of sinusitis surgery may be a recurrence of sinusitis, which can be improved by medication, and if the effect of medication is not good, you can undergo a second surgery. It may also be a bacterial infection caused by rhinitis, which can be treated with anti-infection. Sinusitis surgery two years after the left side of the nose in the pus nose, it is recommended that the hospital visit, nasal endoscopy or sinus CT examination, to clarify the operation cavity and sinus situation, such as the determination of sinusitis, or bacterial infection of the nasal cavity, can be applied to the first drug treatment. Application of antibiotic anti-infection treatment, such as penicillin, cephalosporins and macrolide antibiotics, such as amoxicillin, cefuroxime, roxithromycin, etc.; glucocorticosteroid nasal spray, such as mometasone furoate nasal spray, etc.; combined with mucus drainage agents, such as eucalyptus-pin intestinal soft capsule; proprietary Chinese medicines through the orifices of the nose rhinitis tablets or the nasal abundance of Shu oral solution treatment. Generally, the pus nasal discharge will be improved after using the medicine. If there is no improvement after half a month of medication, you can consider secondary surgery. Exercise more in your life to strengthen your resistance, avoid colds and prevent the recurrence of rhinitis and sinusitis.