Try blowing it. A runny nose is usually the sign of a cold or allergy, so until the underlying problem is dealt with, all you can do is just keep blowing it to rid yourself of as much mucous as possible.
benedryl help to dry up everything, i use it evertime i get a runny nose, cold or allergy season
Stuff two tampons in your nose. Problem solved. Otherwise, take medicine.
keep tissues in it all day :P at least, thats what gram gram said >_>