What should I ask first if I am getting a consultation for Botox for the first time in late autumn for horizontal forehead wrinkles and frown lines?

As the weather has gotten drier lately, the horizontal lines on my forehead and the vertical lines between my eyebrows have become much more noticeable. They look fine in the mirror in the morning, but by the afternoon, makeup settles into the wrinkles, making them look even more prominent. I tend to furrow my brows frequently, perhaps due to facial expression habits, so it bothers me even more.

I have never had Botox before, so I have a lot of questions before the consultation.

1. I am wondering if it is better to consult about the forehead and the area between the eyebrows together, or to examine each area separately.

2. Since this is my first time, I'm worried that my facial expressions might look too awkward. What should I mention during the consultation to make it look natural?

3. I would also like to know how long the effects usually last and how long it is generally recommended to wait between treatments.

4. Are there any special precautions I should take when receiving it in late autumn or winter?

Since it's my first time, I was just vaguely worried, but I think the consultation will be much easier if I know this in advance. I will take your reply into consideration!

(The photo is for reference only)