Dr. Jay Wellons, a pediatric neurosurgeon, tells a wonderful story about being the doctor on a plane:

We made our way to the back of the half-empty plane. There on the next to last row was a middle-aged man covered in blood. He held a cantaloupe-size wad of tissue under his nose from which blood was pouring out as if a spigot had been opened. He had a deep laceration on the top of his nose but the blood was coming from inside.

Not having the microcatheter and glue that would have been used in a hospital, he and a nurse practitioner improvised with Afrin nasal spray and tampons.