Suggest Remedy For Lump On The Eyebrow

I was at Walmart when I saw a 10 pack of tuna on sale.A 8 year old child noisly past behind me I was holding the 10 pack of tuna 2 feet above my face when I heard that child I turned quickly letting go of the 10 can package of tuna it landed on my eyebrow those tuna cans have a rim at the bottom as it hit my eyebrow cutting slightly into my skin.Finally, 5 months have passed leaving a bump on lrleft bottom of the eyebrow, what can I do to get rid of it?