For most people with a herniated disk, low back pain is the initial symptom. This pain may last for a few days, then improve. It is often followed by the eventual onset of leg pain, numbness, or weakness. This leg pain typically extends below the knee, and often into the foot and ankle.
Iron Nuggets are used for crafting very basic thaumaturgic tools, including your very first wand. Besides crafting, they can be produced as bonus material by the Infernal Furnace.
Villager armorers, tool smiths, and weapon smiths buy 7-9 iron ingots for one emerald as their second tier trades. Chainmail helmets, chestplates, leggings, boots, and iron helmets,chestplates, leggings, boots, swords, pickaxes, axes, hoes and shovels can be repaired with iron ingots in an anvil.