Is It Normal For A Forehead Lump From Injury To Still Be Bruised, Tender, Soft, And Slightly Numb Even After 10 Days?

I fell over 10 days ago (bit too much to drink for my birthday!) and banged my head/face quite badly against a wall. Checked at A&E that night then again 2 days later as the bruising was really bad down one side of my face (but this is slowly healing). But the lump on my front left of my forehead from the impact is still there and badly bruised. The swelling is slowly getting better but its still very tender & soft (and a bit numb) - is this normal that it is taking so long for the swelling to reduce? Thank you.