Androgen alopecia with seborhic dermati.

Hello, It's been two years my hair starts receding from my temple area , but I didn't really care about much thinking it's normal .. past 6 months hair fall was alarming just if i weave my fingers through I will get lot of strands on my hand . Also it was shocking for me when I came to know my crown is having less density. On top of this I have huge layer of dandruff laid day by day in scalp .. initially I thought it may be due to wearing helmet. But the things are getting worse .. I had great amount of hair during my early ages ,,, I can't even imagine about getting bald . Hence with all these thoughts I decided to see dermatologist.. This was the suggestion from the doctor after seeing my scalp . 1) sebowash shampoo 2) arcolane solution Both has to be used alternatively daily for dandruff 3) mintop 5% at morning 4) anaboom hair serum at night 5) finax 1 mg for 1 month Here's I'm worried about 1) do I need to continuously use minoxidil life long 2) is it safe to take finax