Hairfall and treatment

I am facing hairfall in pune, I know it is common in pune but to prevent it or to slow it down I started treatment from a dermatologist. I am using some hair grow serum and couple of other medicines for different minerals and vitamins. I want to ask if I should use derma roller or not? Have anyone used it? Is it effective if I use derma roller with minoxidil?

Please help me before I get bald!!