Unfortunately, this is a disorder with no medical treatment can cure definitely, and options of management are limited. It is due to an immunological problem, and the hair roots are lost for good. In case alopecia areata has stabilised, as in your case for a number of years, the only options available to the patient are hair transplant, or artificial hair, which may be a wig or a weave, or hair implants. But I am not fully sure about hair implants, and more so in alopecia areata. I have never used them, and am wary of their longetivity. Hair transplantation can be done in alopecia areata, if it has stabilised. I have done more than 700 cases of HT, and done around 10 cases of alopecia areata successfully, provided there is sufficient donor hair.