For acute and chronic conjunctivitis, patients with red eyes and foreign body sensation with increased secretion should be given anti-bacterial eye drops such as levofloxacin eye drops or tobramycin eye drops, and oxyfloxacin eye ointment at night. 2. For allergic conjunctivitis, patients with itchy eyes should be given anti-allergy eye drops such as azulfidine hydrochloride or olopatadine eye drops. 3. The patient should be given anti-allergic eye drops such as Azelastine hydrochloride eye drops or Olopatadine eye drops. 3, eye redness caused by eye fatigue, eye drops to relieve eye fatigue such as ophthalmic aminopeptide eye drops or heptaerythrocysticin eye drops. 4, eye redness caused by iridocyclitis, which requires anti-inflammatory pupil dilatation treatment. 5, eye redness caused by glaucoma, which requires treatment to lower intraocular pressure. Therefore, when eye redness occurs, you should go to a regular ophthalmic medical institution in time to determine the cause of the eye redness and give appropriate treatment to avoid delaying the condition.