If the area between the eyebrow area was previously intact and a recent cystic acne resulted in the depression/contouring, then perhaps you could consider subcision with the placement of fillers.
This process is fairly comfortable with the use of numbing cream and through the use of a blunt cannula, the instillation of the filler (in my own practice I prefer the use of Radiesse as it is a collagen-stimulator) is fairly uncomplicated in the right hands.
There may be some mild swelling post procedure but should die down in 2-3 days. Minimal social downtime as well.
Regardless, please consult your doctor who can review it in real life as photos can sometimes be deceiving.
