What should I do about twitching of the lower eyelid of the right eye?
Under normal circumstances, twitching of the lower eyelid of the right eye may be caused by factors such as mental stress, excessive eye use, eye fatigue-related eyelid spasms, allergic conjunctivitis, or facial muscle spasms. It is recommended to seek medical attention promptly, identify the underlying cause, and then improve the condition under a doctor's guidance through general management, medication, and other approaches. Specific analyses are as follows:

1. Mental stress: Prolonged anxiety and high stress levels can lead to nervous system overexcitement, causing eyelid twitching. Practice 10 minutes of deep breathing exercises daily, listen to soothing music before bedtime to relax both body and mind, avoid excessive thinking before sleep, maintain emotional stability, and follow a regular sleep schedule to reduce nerve stimulation.
2. Excessive eye use: Staring at electronic screens for long periods or staying up late can fatigue the orbicularis oculi muscle, resulting in eyelid twitching. Follow the 20-20-20 rule—every 20 minutes, look at something 20 feet away for 20 seconds. Adjust screen brightness to match ambient lighting, ensure 7–8 hours of sleep each night, and apply a warm towel compress to the eyes for 10 minutes to relieve muscle tension.
3. Eye fatigue-related eyelid spasm: Prolonged muscle tension in the eye area can lead to functional disturbances, manifesting as frequent eyelid twitching. Reduce time spent using electronic devices, avoid direct exposure to bright light, and use lubricating eye drops such as compound methionine & vitamin B12 eye drops, sodium hyaluronate eye drops, or naphazoline pheniramine eye drops as directed by a physician.
4. Allergic conjunctivitis: Exposure to allergens such as pollen or dust mites can irritate the conjunctiva and affect the muscles around the eyes, leading to eyelid twitching and itching. Avoid known allergens, wear windproof glasses when outdoors, and take antiallergic medications such as cetirizine hydrochloride tablets, loratadine syrup, or chlorpheniramine maleate tablets as prescribed.
5. Facial muscle spasm: Abnormal electrical discharges caused by vascular compression of the facial nerve typically begin with eyelid twitching and gradually spread to other parts of the face. Medications such as carbamazepine tablets, oxcarbazepine tablets, or phenytoin sodium tablets may be used under medical supervision to alleviate symptoms. In severe cases, microvascular decompression surgery may be performed to relieve vascular pressure on the nerve.
In daily diet, increase intake of foods rich in vitamin B complex, such as lean meat and nuts, and reduce consumption of spicy and irritating foods. Avoid rubbing the eyes to prevent eye infections. Comprehensive lifestyle adjustments can help resolve eyelid twitching and support overall eye and neurological health.