I bought a "pre-curved' asymetric climbing shoes. When I fell off a giant roof, I came flying into a face and scraped it with my foot. It pinched and I felt a sharp pain.
I thought I broke something in this small fall. I expected the worst and it is just a case of a tight shoe and a black toe.
Last time I drilled a hole through it. Choose a small and sharp drill bit, gently press the bit in the slowest speed. It chews through the nail and you stop when it just breaks through. I was not in pain but my wife was aghast in pain looking at this antic. But it feels great after since it releases pressure. A genuine relief moment.
This time, I just used something like thumb tack. I used bit of sanitizer. Instant happy moment. I am going climbing after 4 days since poking it.
By the way, the nail is soft and lacks usual firmness when it is black. So it is a lot easier than you think.