Suggest Treatment For Removing A Mass Under The Skin Of The Forehead

hi...i am 22 yr old boy from india
a month ago i fall down in college with mt head shot on bench edge, the left area of forehead.
that was quite painful and area got swollen.in 10-12 days, that area looked ok, without much pain.
but suddenly since 10-12 days, the i can feel the excess growth under the skin, at the area exactly where i got hit by bench edge.
and now tht little mass of tissue is not disappearing, it can be moved easily under the skin.
is there any way to remove that other that small cometic surgery.
doctor told that notihng to worry, if it is destined to go it will go in around 2 months also, but if no then have to remove surgically.
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