I want to know the cost of Botox.

It seems like a lot of people are getting Botox these days, so I'm considering it myself. Everyone around me recommends it. I am most curious about the cost of a single session. I want to know how much basic treatments like wrinkle Botox and jawline Botox usually cost, and if there is a significant price difference depending on the area treated. I am also wondering if a single session is sufficient for the effect, or if I need to get treatments consistently every few months. I am concerned about how long the effects of Botox usually last, whether frequent treatments are necessary, and whether getting them too often would be a burden. If anyone has actually had it done, I would really appreciate it if you could share your experiences.