Suggest Treatment For Alopecia Areata

Hello Doctor, I'm 42 years old woman, half year ago I noticed the top of my head has some bald patches and confirmed alopecia areata, then later the both sides of my hair started falling as well, and now it's so easy to see the scalp, I had whatever blood test the doctor suggested me to do including my thyroid, blood count etc all came with normal and good results, now I'm so depressed to see my hair losing everyday and no new hair to grow either, so what can I do now? Thanks Dr for your advice.