Sodium cromoglycate eye drops and levofloxacin can be used together. Levofloxacin hydrochloride is the main ingredient in levofloxacin hydrochloride eye drops, usually has two times the antibacterial activity of of ofloxacin, and its main mechanism of action is to inhibit the biological activity of bacterial DNA rotase, which in turn can inhibit the role of bacterial DNA replication. Levofloxacin hydrochloride eye drops can usually play a certain therapeutic effect on bacterial keratitis, bacterial conjunctivitis and other diseases caused by sensitive bacteria. Sodium Cromoglycate Eye Drops is an anti-allergic drug that is usually used for the treatment and relief of spring cicatricial conjunctivitis and spring allergic conjunctivitis. The mechanism of action of sodium cromoglycate eye drops is to prevent allergic reactions by stabilizing the mast cell membrane in the organism, which can stop or alleviate the release of allergenic substances from mast cells. For the treatment of conjunctivitis, Levofloxacin Hydrochloride Eye Drops and Sodium Cromoglycate Eye Drops can play a positive role, and the efficacy of Levofloxacin Hydrochloride Eye Drops and Sodium Cromoglycate Eye Drops will not conflict, so the two can be used together, but it is necessary to use them at an interval of 10 minutes. Both medications should be used as prescribed by your doctor.