This article discusses first aid for a foreign object placed into the nose.
Something stuck in the nose; Objects in the nose
Curious young children may insert small objects into their nose in a normal attempt to explore their own bodies. Potential objects placed in the nose may include food, seeds, dried beans, small toys (such as marbles), crayon pieces, erasers, paper wads, cotton, and beads.
A foreign body in a child's nose can be present for a period of time without a parent being aware of the problem. The object may only be discovered when visiting a doctor to find the cause of irritation, bleeding, infection, or difficulty breathing.