What is the cause of the right eyelid beating

Palpebral throbbing, may be caused by facial nerve orbicularis oculi spasm. If a short throbbing, lasting a day or two will improve. May be with no good rest, or stay up late, or look at the phone or is a long time close to the eyes, there may be a relationship. Need oral oryzanol drugs, hot towels can be hot compress, if it can improve there is no big problem. If the eyelids beat for a long time, combined with ipsilateral facial muscles beating together, there may be facial nerve spasm. Need to do head MRI, observe whether there is a lesion in the skull compression facial nerve. If no lesion is found, facial nerve is indeed stimulated, you can block facial nerve with botulinum toxin locally.