Half my eye is red from being punched. will this go away?

i have a black eye and half my eye is dark red where it should be white. its been a few days already and its still red. i have taken lots of vitamin c and omega-3 pills. i have also used eye drops and arnica montana cream around the eyes for the bruising. Am i treating my eye the right way? My black eye is going away but the actual eye itself is still bright red. when will this go away?