Botox treatments for migraines have variable efficacy. Some people have less frequent migraines, and others have less intensity of migraines, and some have both. The duration of effect is also variable. Similarly, although we are treating or trying to prevent headaches and migraines, the Botox injection itself can in some cases trigger off a migraine which can give the feeling of nausea that you're describing; thankfully this is temporary.
Can Botox injections for migraines make one feeling like vomiting?
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