No.. treatment depends on the grade..You are suffering from hormonal changes causing Androgenetic alopecia causing hair fall. It's completely stoppable even regrowth of hair is possible with certain medications without any side effects. Treatment depends on the grade of hair loss. So, it's a must for diagnosing which grade, you are in for an effective treatment. Please  send photos of your head, by direct online consultation for accurate diagnosis and proper treatment.

It will help... But you shud get it checked to figure out the underlying cause of hair fall. Some deficiencies, thyroid disorder, recent illness n autoimmune diseases can also cause hair fall apart from male pattern baldness. Do get it checked by a dermatologist.

It's fine to use it but oral supplements may also be required if there is no stabilization of hair loss inspite of the current application. In addition u may/maynot require treatments for the same if the hair fall is exaggerated and not settling down. Multiple factors can b at play and it's better to consult a Dermatologist before self medication to prevent more hair loss and recession of hair line .