50 days. Go 50 on 50 off and repeat. You can inject pwo, prewo, or am/pm. For me, am injs worked best. I did pwo bilaterally first go around and the next run was am injs. This proved far better results. But as with anything else it boils down to personal preference and what works best for YOU. Only way to find that out is to try a few different methods.
And YES you must inject every day, if you dont you will see no results at all.