Suggest Remedy For Severe Hair Loss

Hai doctor... im praveen 18 years old male.... now past a year im losing my hair from the front.... i went to a hair clinic where the dermatologist gave me minoxidil n finasteride gel n harvest health supplement tablets..... n they even asked me to shave my head 4 times in 2 months.....

but i dnt wanna shave my head..... should i really shave my head or not doctor???n will this treatment work