Facial muscle spasm, also known as facial muscle twitching. Facial muscle spasm refers to the occurrence of stale involuntary twitching of facial muscles, mostly contracture of one side of the facial expression muscle to varying degrees. At present, the incidence of facial spasm is on the rise, and fatigue, mental tension, and work stress have taken up an important position. Facial myospasm is divided into primary facial myospasm and facial myospasm produced by the sequelae of facial palsy, the latter is only produced when doing actions such as blinking and raising eyebrows. Many patients suffer from facial myospasm which seriously affects their working life, and there is no significant improvement after taking medication, but there is significant improvement after local Botox treatment, and we hope this technique can help more patients. Botulinum toxin is effective in treating spastic squint, migraine, and post-herpetic neuralgia.