How long do the effects of Botox last?

Lately, whenever I take photos, the expression lines on my forehead and between my eyebrows look more prominent than before, so it is very bothersome. They don't seem to be very deep yet, but I think it would be best to manage them proactively, so I am looking into Botox. Since this is my first time getting this procedure, I would like to get a consultation to see if it is suitable for my condition. I have many questions, so I am writing to inquire.

I am curious about how long it usually takes to feel the effects of Botox. I would also like to know the average duration of the results, as well as the recommended number of sessions and treatment cycle. I would also like to be informed about the cost and pricing, and I am wondering if it is possible to achieve a natural look.

I am also concerned about whether the Botox procedure takes a long time and if the pain is tolerable. I would like to know if I tend to experience swelling or bruising after the procedure, and how long the recovery period is. I am curious if I can return to my daily life immediately, and I would like to discuss any precautions I should be aware of before making an appointment. Although I am worried since it is my first time, I would like recommendations for aftercare methods tailored to my condition.