Will my finger nail grow back?

I slammed my finger in the car door around 3-4 weeks ago. It was filled up with blood the whole way so I drilled two holes to relieve pressure. Did the trick. It is now detaching from my finger everywhere except for the sides. Brownish puss is coming out of the tip of the nail. It smells absolutely horrible. No... show more I slammed my finger in the car door around 3-4 weeks ago. It was filled up with blood the whole way so I drilled two holes to relieve pressure. Did the trick. It is now detaching from my finger everywhere except for the sides. Brownish puss is coming out of the tip of the nail. It smells absolutely horrible. No definite sign of a new nail but there is a little white patch down by the cuticle under my current nail, is that it? Will it grow back/should I see a doctor?
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