V.S.
More then likely you are dealing with this crazy weather...cold/warm/cold. The easiest way to take care of it is to use a Q tip, cover it with an antibiotic, and rub it in her nose as deep as it is comfortable. Coat the inside of the nose.
One thing to keep in mind though, if there is no rhyme or reason to the nosebleeds and they continue, is they are also a symptom of Leukemia. Sorry to mention it or bring it up, but if she gets huge nosebleeds with heavy bleeding that are hard to stop, you need to take her to the doctor.
VickiS