Q: My front facing camera on my iPhone 6 goes black and doesn't work my back facing camera works from time to time

Hello madibeewoe20,

Thank you for using Apple Support Communities.

From the supject line of your post, I assume you are having issues with the camera on your iPhone. The following support article should provide you with some troubleshooting steps. 

Get help with the camera on your iPhone, iPad, or iPod touch - Apple Support

Regards,
Jeff D.