Eyelids become itchy when it gets infected or develops inflammation. It can be due to allergic reaction or due to lack of proper sleep. Itchy eyelids will cause redness on the eyes and will cause irritation. Sometimes, it would give rise to small bumps on the eyelids or even inside the eyes.
Allergic reaction that gives rise to itchy eyelids can be from the simple reason of changing eye cosmetics or due to hay fever. When the allery affects the thin membrane lining of the eyelids it is called as allergic conjunctivitis. Sometimes any infection on the margin of the eyelids can also cause itchy eyelids. Some of such reactions are blepharitis and chalazion. Stye is the term given for localized bacterial infection of glands.
Normally, these infections will not cause any damage to your vision and it will get better within few days. You can apply cool compresses or apply antihistamine ointments for reducing inflammation. Avoid rubbing your eyes which will worsen the problem. In rare cases, irritation on the eyelids can cause anaphylaxis which is highly complicated condition.
Symptoms :
Itchy eyelids can be associated with feeling of burning sensation in the eyes, redness and gritty feeling. There would be frequent discharge of watery fluid from the eyes and it increases when you rub the eyes. For some people, it may also cause runny nose with sneezing due to increased watery discharge. In rare cases, the entire face becomes swollen and red.
In case eyelids irritation is accompanied with signs of visual distortion and shortness of breath or swelling of face, then you need to seek immediate medical care.
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Causes :
The reasons for itchy eyelids may vary from simple reason or not having enough sleep previous night to serious infection. Presence of any foreign particle inside the eyes can cause irritation. Even a slight change can cause inflammation of the eyelids since they are well connected with nerves and blood vessels.