it looks like the blood has already dried under the nail, how long ago did you do it? If it still fresh, I have used a small paper clip, bend one end straight and heat it up, then drill it through the nail to release the presure Either way you are going to be living with it for six months or more.

Better a finger nail, than the black eye I had from catching a medicine ball to the face........everyone felt they needed to ask how I got it.