Botox, experts believe, blocks a very specific type of neurotransmission that sends a signal from a neuron to a muscle and releases pain transmitters, Dr. Ravitz said. "Botox completely paralyses this whole process, so that neuron can’t talk to the muscle," she explained. "It’s like that whole process of
pain-pain-pain is sort of quieted down." But again: This is just a theory as to how it works, she said. When injected into the scalp, neck, shoulders, temples, and forehead every three months, Botox can
reduce the number of migraines people get by up to 50%.
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