A swollen eyelid occurs when there is an inflammation of the connective tissue that surrounds the eye, as well as when there is an accumulation of fluid. It can affect both the upper and the lower eyelids. Sometimes it can be painful and sometimes not. The severity of the swelling may vary, and sometimes it is so severe that it interferes with a person’s ability to see. In these cases, it is more than just a cosmetic problem.
Luckily, most causes of swollen eyelids are harmless and resolve on their own or with the right treatment within a couple of days. However, you should remember that even minor problems can be quite serious. If you have a swollen eyelid, especially if it tends to get worse or does not resolve within a couple of days, you should seek professional medical help. What are the most common causes of swollen eyelids?
Swollen Eyelids Cause #1: Allergy
Allergy is a possible cause of swollen eyelids, especially in cases when the affected eye is red, itchy, and watery. Common allergens are pollen, dust, and mites, which irritate the eyes and trigger an allergic reaction. Even though eye allergies are rarely dangerous, they are quite annoying.
The best treatment when it comes to swollen eyelids because of an allergy is avoiding the possible allergen that triggers the allergic reaction. Antihistamines, including over the counter eye drops, are recommended in this case.