What Causes Growth Of Facial Hair After Childbirth?

Hello Dr , I am 37 years old, I started having facial hairs on my chin and side of the face after my son s birth, I was having diabetes during my pregnancy, and now I have controlled it by diet, but still some times its 112 after eating food, I am not obese, my periods are regular but don t have much bleeding, and ends within 3 days, I read that this disease is called hersutism, can it be cured, i have too much hair growth now. Thanks