Over brows, forehead, temples and on top of head.
It depends where the doctor deems best. I have macular degeneration and glaucoma so I have not decided if I will do this. If I do, I will make neurologist inject in back of my head, neck and shoulders if she will.

For me, it’s 32 sites all over my head, trapezius, and neck. Everywhere that typical tension headaches arise from. Bonus, at 57 years old my forehead is smooth and free of wrinkles.