Remedy for blackheads on forehead and black spots on the ridge of nose, created by wearing spectacles?

Blackheads occur on oily skin, or oily areas of combination skin. After washing your face, wipe your forehead and other oily areas with a mild astringent (available at a chemist).
Facial scrub for blackheads and the dark spot on the bridge of your nose:

Mix rice powder with rose water, and apply it on the affected areas. Gently rub your skin in circular motions. Leave it on for a few minutes, and rinse.