Indent in forehead appeared overnight, could it be Botox-related? (Photos)

I had my first ever Botox in my forehead and 11s in early May. I woke up yesterday with this very noticeable indent in my forehead. I assumed I just slept on it wrong but it hasn’t gone away. I haven’t changed anything about my facial skincare routine. I did start fluocinonide 0.05% liquid on the back of my scalp for eczema and 0.05% cream for several eczema patches, but no other new products. Could this be related to the Botox wearing off or starting fluocinonide, and how can it be corrected?