<s>[INST] so i have a question, im losing hair on one side right on my hairline and i have lost none on the other side whatsoever, it literally came out of nowhere, i got my hair cut every 2 to 3 weeks and it was full to the line, ione week i got it cut and an inch of it from the hair line back was missing, ive tried so much to get it to grow back, im only 19..i cant figure out at all what it is thats casuing it. ...but i know it must not be genetic more then likely if its just one side and not the other at all...can someone help me please its ruining my life already [/INST] Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. As per your case history you are having alopecia aerata. My treatment advice is - 1. Use a good herbal hair oil and shampoo for routine use. 2. Apply a Tacrolimus 0.03% ointment on affected skin. 3. Take an iron supplement and vitamin B12 supplement. If problem persists then consult a dermatologist. I hope I have answered you query. If you have any further questions you can contact us in every time. </s>