Hi, Welcome to HealthcareMagic Forum.
Does it hurt when you touch it? If yes, it could be Sinusitis
which a ENT specialist
should address. May be you should get a X ray
or CT Scan
done to rule out any Pathology in your Eyebrow area. Kindly also get yourself examined by a Orthopedist so that he can examine you and rule out if the Pain is really from your Eyebrow area or it is a referred pain
from somewhere else. If the Report come out Normal then there should be nothing for you to get concerned as there wont be any serious underlying Pathology. You will need just analgesics then.
Wish you Good Health.