Hairloss advice

Hey guys please answer if anyone have experience!

So i visited doctor gohar alam today for my hairloss issue and he gave me some serum shampoo and oral min 2.5 mg and i asked him if it will cause any issue he said it will not and i asked if leaving it will return my hairloss after 3 months cause he gave me it for 3 months he said after that you can drop it and hairloss will not come back and as far as my knowledge leaving min will surely cause hairloss correct and i also asked him about fin he said it have side effects and i am not going to give you that yet but visit after 3 months so i will think about fin so i am mostly confused about the oral minoxidil thing and the serum he gave me seems good it have redesyl amd procapil all these things so does anyone have experience with the doctor or this medication regarding hairloss issue please help me and answer my questions it will be much appreciated thank you This pic is my current position and also my hairline is also thinning Ive posted before but noone is helping please reply guys