Welcome to Harry Potter Theory. Today we’re discussing Albus Dumbledore and his cursed hand. More specifically, we’re going to be breaking down Dumbledore’s death, the curse itself and one scenario in which MAYBE, just MAYBE- Dumbledore could have saved himself.
Let’s get in to it.
Months before Dumbledore’s tragic demise, Dumbledore himself had decided to track down one of Voldemort’s horcruxes: a small ring crowned with a strange, dark stone. And what made this particular Horcrux unique is that this stone was in fact one of the fabled Deathly Hallows - the Resurrection Stone to be precise. 
The history of the stone dates back some time, with its origin story suggesting that it had been given to the middle Peverell brother, Cadmus Peverell, by Death himself. 
"Then the second brother, who was an arrogant man, decided that he wanted to humiliate Death still further, and asked for the power to recall others from Death. So Death picked up a stone from the riverbank and gave it to the second brother, and told him that the stone would have the power to bring back the dead."
As mentioned above, this stone had the power to summon spirits back from the dead. But when Voldemort stole his uncle Morfin’s ring years and years prior, he had no idea that it contained such a powerful relic. To him it was just a family heirloom, and, more importantly, an item that he could taint with dark magic, an item that he could turn into a HORCRUX.
But when Albus first found the stone and noticed it’s distinct markings, he immediately realized that it was one of the three Deathly Hallows.  Knowing the true power of the stone, Dumbledore’s curiosity got the better of him, and he ended up placing the ring on his finger, securing his fate. 
My question is this: if Dumbledore’s curse had been effectively confined to a single hand- why not just...Get RID of said hand?