how???

my finger injure d....
now feel so fan...
this morning go to see doctor..
doctor say need to take out n finger nail...
but i say i got exam..
so he say wait after i finish my exam...
but now..
i seeing my finger...
it keep on swelling...
almost whole finger nail become black d...
and i can see d "nana" at d bottom there...
haih...
wat shud i do?
take out d finger nail o after exam??
take out le i worry exam till..
din take out i worry exam time wil pain...
haih...how??how??