Erythromycin ointment can be used in the nasal cavity under the supervision of a specialist if there is a condition included in the indications for the use of the drug. The main component of erythromycin ointment is the macrolide antibiotic erythromycin, which works mainly against most gram-positive bacteria, some gram-negative bacteria, as well as chlamydia, mycoplasma and other pathogenic microorganisms. Clinically, it is effective in the treatment of suppurative skin diseases (such as impetigo), acne vulgaris, small burns, and infections of ulcerated surfaces. If the conditions included in the above indications are present in the nasal cavity, the drug can be chosen for treatment, but it needs to be used under the supervision of a physician, and the specific efficacy varies from person to person. Some adverse reactions may occur after the use of the drug, such as allergic reactions, irritation and so on. It should also be noted that it is forbidden to use in people who are allergic to this product, and avoid using it simultaneously with chloramphenicol and lincomycin. The specific use of the drug should be carried out under the guidance of a specialist.