Can you breathe through a nose piercing Like if you have a nose piercing and you take out the stud and plug your nostrils can you still breathe out of the little hole?

The hole from a nose piercing would not be large enough for you to take in a sufficient amount of air if you were to plug your nostrils. Air will flow through the piercing hole but you will still need your nostrils in order to take in enough oxygen.