This can be impossible to deal with unless the real original root cause is dealt with first and/or the situational triggers are dealt with first. Some clients pull hair so often that they end up with small or large bald patches. Initially these are usually on the top or in places that can be covered up with other hair. Eventually the habit becomes so severe that cover up is no longer possible. Finally, some people even pull the hair out of their eyebrows or eyelashes or even from inside their nose.