Suggest Remedy To Get Rid Of Patch On Forehead Due To Injury

Hello. I am 32 year old Indian female. I accidentally hit my forehead against the wall once/twice and i guess i hurt it when i once fell on the floor too. this happened between October-December last year. I have a dark (black) spot now visible on my forehead and it does not make me look good. Any suggestions as to what home remedies/medications I could use to get rid of this patch mark on my forehead?
Thanks