Redness and swelling in the lower corner of the patient’s eye can be caused by blepharitis, eye trauma, eye allergies, etc. Patients with redness and swelling in the lower part of the corner of the eye, usually due to localized eye infections, such as blepharitis, folliculitis, etc., under the stimulation of inflammation, the patient may have redness and swelling in the corners of the eyes, but also the corners of the eye pain and other uncomfortable symptoms. Allergic patients exposed to pollen, hair and other allergens, patients with eye allergic reactions, patients can appear eye redness and swelling, can also be accompanied by eye itching and other discomfort symptoms. Eye trauma patients because of extrusion, bumping, etc., patients may appear eye redness and swelling, patients may also appear eye pain, subcutaneous bruising and other discomfort symptoms. It is recommended that patients with obvious redness and swelling of the corners of the eyes should consult a doctor in a timely manner to assess their condition and follow the doctor’s instructions to choose the appropriate treatment.