Stylus pen for Note 5

My phone downloaded a software program about 4 months ago that will not let me pull up a keyboard in any app such as Facebook Messenger or other apps where you talk to other people such as Skout tagged any application like that without using my pen I lost my pen last week and I can't speak to anybody in messenger without having to go through a bunch of changes to get a keyboard could someone please tell me apart from buying another pen what can I do so I don't have to use the pen before keyboard comes up is there an application I can download that won't force me to use that pain and the keyboard will continue to come up please help going crazy