The dreamed flies - the adverse sign. Such dream can symbolize loss of health owing to an infectious disease. For the young woman to dream flies - to misfortunes. However if she kills flies, then she will manage to return the lost positions.
Subject: Insects
Look also: Worms Bug
Mucha's word or his synonyms meet in oneiromancy: Flycatcher
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.