dear welcome to HCM......
Alopecia areata is usually a self limiting disease,and on upto 80% of cases,coplete hair geowth occur with out any treatment...
inj
Triamcinolone 2.5 to 10 mg/ml in the lesion is very effective....or
anthralin .5% ointment ,used daily,is also good ...
VIT B12 :
first take B12 supplement in oral or i/v form,then make your habit to take meat atleast once a week ....
VIT D:
inj vit D3 orally once a week for 4 weeks ...
small penis scrotum:-
dearest there is no medical treatment to grow the penis after
puberty,now adays some strech devices are introduce which help to bring slight increase....
regarding your sexual problems,you can contact me,i will guide you properly ....
DR SIDDIQULLAH( hafiz siddiq bukhari,is my face book name)