Children can apply erythromycin eye ointment because erythromycin eye ointment belongs to the macrolide class of antibiotics, which can effectively inhibit eye inflammation due to bacterial infection and Chlamydia trachomatis infection. Children will rub their eyes with their hands, which can invade germs into the eyes through their hands, causing symptoms such as red eyes, itchy eyes, and very large eye stools. In this case, children can be treated with erythromycin eye ointment, which can quickly control the eye infection. Erythromycin is a macrolide antibiotic with a good safety profile and is suitable for children. It rarely causes allergic reactions when applied to children, so children can use erythromycin eye ointment.