Can I use minoxidil alone or does it need to be used simultaneously with injection to see results? I had injections from a dermatologist twice in September and then again in October of 2012 and I saw results however I still have a spot at the crown of my head that hasn't grown back yet. I did read from other reviews that I need this treatment for 6-12 months which I wasn't aware of. I don't have insurance at the time that's why I'm inquiring about if using minioxidil alone could help. Thank you