The healing time for blepharitis depends on the severity of the patient’s condition and the timeliness of treatment; it may take 3-4 days to heal in mild cases, 3-4 weeks to heal in severe cases, and 1-2 months to heal in cases that have developed cellulitis. Blepharitis is a bacterial purulent inflammation of the eyelid gland that requires antibacterial and anti-inflammatory treatment. In milder cases, timely topical medication can heal in 3-4 days; if the lesion has developed a significant pus, or if medication is not administered in a timely manner, healing is slower and may take 3-4 weeks to heal; some patients may develop cellulitis due to poor immunity or lack of treatment. In some patients, this may develop into cellulitis, where local medication is less effective and systemic antibiotics are needed to heal, usually for 1-2 months. Therefore, patients with blepharitis should seek prompt consultation with an ophthalmologist to avoid delaying treatment and worsening the condition.