The lower eyelid redness is a relatively common problem, and the treatment varies from case to case, as follows: 1. Some patients find that the lower eyelid on one side is severely swollen after they get up from a nap, usually because of lymphatic reflux disorder, and it is recommended that hot compresses or walking in an upright position can relieve the symptoms. Some people sleep on their side, with their heads facing one side, and their lower eyelids are prone to edema, which is also caused by lymphatic reflux disorder, and some people may be able to relieve it on their own. 2. The lower eyelids are red and swollen as a result of allergies, some girls love beauty and rub some eye shadow on both lower eyelids, and seasonal changes can also cause lower eyelid allergies. It is important to seek prompt medical attention at the hospital and to dab in or apply anti-allergy eye drops and ointments appropriately. 3. If the lower eyelid is red and swollen and accompanied by pain, there is a chance of mydriasis. If the lower eyelid is red and swollen with pain for many days, and the anti-inflammatory eye drops do not relieve it on their own, and it is even getting swollen, you need to see a doctor at the hospital to see if you have mydriasis.