Blepharitis, or blepharitis, can be treated with erythromycin ophthalmic ointment, which needs to be used as prescribed by your doctor. Blepharitis is an acute purulent inflammation of the eyelid glands, caused by staphylococcal infection. It manifests itself as symptoms such as conscious eyelid swelling and pain when blinking, limited redness and swelling of the eyelid, pressure and pain, and hard nodules when touched. The treatment of this disease can take antibiotic eye drops or antibiotic eye ointment topical application. Erythromycin ophthalmic ointment is an antibiotic ointment with antibacterial effect and is used for conjunctivitis, trachoma, blepharitis, and external eye infections. Therefore, blepharitis can be treated with erythromycin ophthalmic ointment. Adverse reactions to erythromycin ophthalmic ointment occasionally see changes in vision, eye pain, persistent redness, irritation and other allergic reactions. It is contraindicated for those who are allergic to this product. It should be used under medical supervision.