Blepharitis is a subacute or chronic inflammation of the surface of the lid margin, the eyelash follicles and their glandular tissues. The three main types of blepharitis can be classified as scaly, ulcerative, and canthal blepharitis. I. Scaly blepharitis, which is a chronic inflammation caused by seborrhea at the lid margin. Treatment: 1. Get rid of the causative factors and avoid irritants, and correct refractive errors if present. If there is a systemic chronic disease, it should be treated at the same time. In addition, one should pay attention to nutrition and physical exercise to strengthen body resistance, keep bowel movements open, and reduce stimulation by tobacco and alcohol.2. Clean the eyelids with saline or 3% boric acid solution, swab away the scales, and apply antibiotic eye ointment 2-3 times daily, and once healed, once daily for at least 2 weeks to prevent recurrence. Second, ulcerative blepharitis, a chronic or subacute purulent inflammation of the eyelash follicles and their accessory glands. Treatment: Ulcerative blepharitis is stubborn and difficult to treat, and it is best to perform bacterial cultures and drug sensitivity tests to select sensitive medications for active treatment.1. All triggers should be removed and personal hygiene should be observed.2. Saline should be used daily to clean the eyelids, remove pus scabs and eyelashes that have loosened, and clear the pus from the follicles, then massage the eyelid margins with a cotton swab coated with antibiotic eye ointment four times daily.3. Inflammation should be completely treatment should be continued for at least 2-3 weeks after subsidence to prevent recurrence. 3. Canthal blepharitis, the etiology of which is mostly caused by Mo-Abis infection, may also be related to vitamin B2 deficiency. Treatment: 1. Apply 0.25%-0.5% zinc sulfate eye drops 3-4 times daily. 2. Take vitamin B2 or vitamin B complex orally as appropriate. 3. If there is chronic conjunctivitis, this should be treated at the same time.