If your hair loss is not due to high stress levels or undesirable lifestyle habits and diets, it will boil down to your genetics
The docs in the hospitals will tell you that there are only 3 things that are scientifically proven to help combat hair loss if the cause is genetic.
1) Minoxidil (topical hair spray)
2) Propecia (oral tablets)
3) Hair Transplant
Minoxidil costs about $35 per month
Propecia cost $3 per day (about $90 a month)
I dunno about the surgery cos its really out of my league.
However, minoxidil and propecia may or may not work for everyone.
Its not a 100% effective solution.
Plus, you will have to take them for life to keep your hair.
Stop the medication and the previous results you have got will just fall off.
I dun really trust those commercial hair treatment saloons. Just way too ex and no concrete promises. (had a not so nice experience at a reputable one, my bro-in-law also tried it b4 but no results)
Maybe you can try to work on your lifestyle habits and diets first.
Dun worry too much abt the hair loss. More stress = more loss
And dun scratch your scalp too much.
If you really wanna visit the doc, get a reference letter from a polyclinic. (think abt $20 for consultation)
The specialist docs will cost abt $60+ per consultation. (excludes the medication)
Hope u will find this useful.