How does Botox for headache work?
Botox relaxes the muscles by preventing the release of acetylcholine, which contracts the muscles and creates wrinkles in the process. This basic fact about Botox is undisputed. The right Botox dosage can even paralyze the muscles. There are several theories about Botox for headache. One theory says that muscle tension and spasms cause migraines and by eliminating the muscle tension with an injection of Botox it will also eliminate headaches. If given before the headache begins, Botox may also prevent the onset of headache. Many hold the contrary view that muscle tensions are not involved in headaches. Another view is that muscle spasm irritates nerves that innervate them. When these nerves send signals to the brain in an increased amount, it causes pain and possibly headaches. The action of Botox by inhibiting the transmission of nerve signals causes a lessening of the pain. Many researches think that migraine headaches are a result of inflammation of blood vessels. However, muscle te
