Prescription

The Prescription is an item in the Ocarina of Time Trading Sequence. If Link brings the Broken Goron's Sword to Biggoron on top of Death Mountain to be repaired, Biggoron will not be able to help him unless Link gets him some Eye Drops for his irritated eyes. To do this, the Goron will give Link the Prescription, which must be taken to King Zora in Zora's Domain. If Link has not already done so, he will need to unfreeze King Zora using Blue Fire from the Ice Cavern. After Link shows King Zora the Prescription, he will give Link the Eyeball Frog, an important ingredient for making the Eye Drops.