Crying before going to bed the next day the eyes are swollen mainly due to excessive secretion of tears by the lacrimal gland, bacterial infections and other causes, the patient can promote the swelling of the eyes to subside through physical therapy, medication and other ways. 1. Lacrimal gland secretes too much tears: crying before bedtime can make the lacrimal gland secretes too many tears, tears to be excreted through the tear ducts, tear sacs, can be partially retained in the loose connective tissue around the eye eye swelling. Patients can promote the swelling of the eyes to subside by applying local cold compresses. 2. Bacterial infection: If you repeatedly rub your eyes with your hands while crying, it is easy to cause eye infections such as conjunctivitis, etc., and under the stimulation of inflammation, patients may experience eye swelling. Patients can follow the doctor’s instructions to use antibiotic medication, such as levofloxacin eye drops, tobramycin eye drops and so on. It is recommended that patients with significant eye swelling should seek prompt medical attention to assess their condition and follow the doctor’s instructions for treatment.