I keep having these muscle twitches in my scalp on the sides of my forehead. Although they are not painful, they are consistent & annoying.

Try Botox. Although Botox has typically been used for cosmetic purposes to rest muscles, the twitches you are experiencing are due to muscular movement caused by neuron firing. By resting the muscles both on forehead and on scalp with botox, you could effectively treat this annoying but non-detrimental issue.