i've cut my hand (palm) under my pinky finger i cant move all finger , not...

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...pinky ! i can't flat my hand? i've cut my hand (palm) under my pinky finger i cant move all finger , not pinky ! i can't flat my hand afraid to open the wound pleas help me !! can anyone tell me how to reduce my pinky finger pain it's swollen and i can't move it !!! i always keep my hand in fist mode !!!! please help me i really appreciate it !! by the way i got angry and i punched a mirror i know it's stupid !!! thanx