TUBAMYCIN is an antibacterial drug with antibacterial activity against staphylococci and some negative bacilli, and dexamethasone is a strong corticosteroid with anti-inflammatory, anti-allergic and immunosuppressive effects. Adrenocorticosteroids, also known as glucocorticoids, can inhibit inflammatory responses caused by various factors and may also delay wound healing. If the patient has an infectious inflammation, this time need to be combined with this antibiotic, so on the one hand to play a role in inhibiting the inflammatory response, but also has antibacterial effect, the dianbixu ophthalmic ointment in clinical use can be mainly used for hormone-responsive ophthalmic inflammatory lesions and ocular surface bacterial infections, or the risk of infection, in short, the role of the drug usually can play anti-inflammatory, anti-infective In short, the drug usually works as an anti-inflammatory and anti-infective agent.