Redness, swelling and pain around the corners of the eyes may be related to blepharitis, blepharitis and lachrymal vesiculitis, depending on the individual. 1. Blepharitis is an inflammatory disease caused by the invasion of the eyelid glands by purulent bacteria, commonly caused by Staphylococcus aureus. Typical symptoms are redness, swelling, heat and pain in the eyelids, often accompanied by tearing. In severe cases, it can be accompanied by chills, fever and other systemic symptoms. 2. Blepharitis refers to an inflammatory disease that occurs in the skin of the eyelid margin, eyelash follicles and their glands. Common causes include abnormal secretion function of the sebaceous glands of the eyelid margin, pathogen infection, and nutritional deficiency. Typical symptoms are itchy eyes, eyelid margin congestion, eyelid margin sebaceous overflow, etc. It can also be accompanied by inverted eyelashes, eyelash loss and ulcers. 3. Dacryocystitis is often a localized infectious disease of the lacrimal sac caused by bacterial reproduction due to narrowing or obstruction of the nasolacrimal duct. Typical symptoms are tearing, eye stinging, pressure, congestion, redness and swelling, often accompanied by purulent exudate. If the redness, swelling and pain around the corner of the eye occurs, you should seek medical treatment in a timely manner, and should not take any unauthorized treatment to avoid delaying the condition. Pay attention to rest on weekdays, keep eye hygiene, reasonable diet and avoid overwork.