Ichor

Ichor is a crafting material dropped by Ichor Stickers in the Hardmode Underground Crimson. It is the Crimson counterpart to the Corruption's Cursed Flame.

Tips

 * Ichor does not burn up in lava, so pouring lava on Ichor Stickers is a possible way to collect Ichor. This also means areas with lava can be used as natural traps to farm Ichor.
 * Unlike Cursed Flame, Ichor only drops from Ichor Stickers, making it slightly harder to collect in bulk.

Trivia

 * Ichor, in Greek mythology, is the golden ethereal fluid that flows in the blood of gods and immortals, as also said in the item's tooltip. It also means a discharge from a wound or ulcer. H.P. Lovecraft, the creator of the original Cthulhu character, often used "ichor" in his descriptions of otherworldly creatures.
 * It can be pronounced "eye-core", or "eye-ker". It can be pronounced "Iker" to rhyme with "sticker". Hence the name of the enemy, Ichor Sticker.