Question from the Bible: 2 Kings 6:25And there was a great famine in Samaria: and, behold, they besieged it, until an ass's head was sold for fourscore pieces of silver, and the fourth part of a cab of dove's dung for five pieces of silver.
See All... "And there was a great famine in Samaria: and, behold, they besieged it, until an ass's head was sold for fourscore pieces of silver, and the fourth part of a cab of dove's dung for five pieces of silver."

What did these Samaritan people do with the ass's head and with the dove's dung?

As strange and as disgusting as it may seem, they ate it. Most Bible scholars have done their best to make the dove's dung something else. However, there are other records of people collecting and eating dung in times of terrible famine. The head of the ass, or donkey, was not much better. It was one of the unclean animals for Jews and the head of a donkey is its most inedible part. These examples are given to show the extremity of the famine. They were reduced to eating disgusting food for outrageous prices. But that is what people do when they are starving to death.

This verse is followed by the story of two mothers who agreed to eat their babies. However, the first mother complained to the king when the second mother hid her baby on the second day (2 Kings 6:26-30 [26] And as the king of Israel was passing by upon the wall, there cried a woman unto him, saying, Help, my lord, O king. [27] And he said, If the LORD do not help thee, whence shall I help thee? out of the barnfloor, or out of the winepress? [28] And the king said unto her, What aileth thee? And she answered, This woman said unto me, Give thy son, that we may eat him to day, and we will eat my son to morrow. [29] So we boiled my son, and did eat him: and I said unto her on the next day, Give thy son, that we may eat him: and she hath hid her son. [30] And it came to pass, when the king heard the words of the woman, that he rent his clothes; and he passed by upon the wall, and the people looked, and, behold, he had sackcloth within upon his flesh.
See All...). Certainly, this story is no less awful than the eating of ass's heads and dove's dung. The purpose is to show just how desperate people get and how far down they will go when they have no food. It also shows just how bad this famine was. There is no reason at all to doubt the plain meaning of the passage.