Thank you foryour question Myzoba. I am sorry to hear about your situation. Botox isa purified protein used to address wrinkles associated with facial expression. It is important to clarify what forehead means because there are two groups of muscles in this area. The glabella is between the brows and is responsible for pulling the brows down when one frowns. The frontalis is a broad muscle that lies across the upper forehead and is responsible for raising the brows. Some people have the glabella treated and say the forehead was treated. If this is the case, then the glabella muscles are relaxed and the frontalis acts unopposed and wrinkles may be seen above the brows. This is more common on the outer forehead because treatment of the glabella often relaxes the middle portion on the frontalis. Treatment to the lateral frontalis can correct such concerns. I normally treat both areas to avoid such issues. Please consult witha doctor for specific recommendations. Good luck!
I agree that it appears the lateral forehead was not properly treated. It may be that they either hoped it would "take" or that an insufficient amount was used. If the problem persists more than 2 weeks after injection I would have them take another look and possibly treat the unaffected area with more Botox.