Swelling of the eyes after crying is caused by accumulation of tears and rubbing movements, or by pathological factors such as chronic conjunctivitis. When the patient is emotionally excited, the lacrimal glands will secrete a large amount of tears, and within a short period of time, the secreted tears will not be able to be discharged through the tear ducts, and will accumulate around the eyes, and the connective tissues of the eyelids are relatively loose, and a large amount of fluid accumulation will cause the surrounding tissues to become edematous. Actions such as wiping away tears or rubbing the eyes can likewise cause swelling of localized tissues. Chronic conjunctivitis patients who cry may induce increased inflammation, causing localized tissue swelling. If you want to reduce the swelling quickly after crying, you can consider using a cold towel to apply cold compresses to the local tissues of the eyes within 24 hours to avoid aggravation of edema, and if caused by inflammation, you need to use topical antibiotics under the guidance of a doctor.