Why my Frown Lines Are Still There After One Week of my Botox Injection?

It is still early. I often see the best improvement between 7 and 14 days after injection. The lines may however require more time (and injections) to soften.

Even though you've had treatment with Botox and it's working, those static lines took time to form, and will take time to soften. Regular treatments with Botox (every 3-4 months) will gradually help soften those static lines.