Although you could try using a filler injected under your forehead scar to raise it, I think you would get a better and more long lasting result from having a surgical scar revision to remove the existing scar. Ideally, you would be trading your existing scar with a new one that is less noticeable.
These answers are for educational purposes and should not be relied upon as
a substitute for medical advice you may receive from your physician. If you
have a medical emergency, please call 911. These answers do not constitute
or initiate a patient/doctor relationship.