Hello, a low HB is just a symptom of the internal disease. The low levels can be either due to low nutrition ( which in her case no), improper absorption & elimination- that is by loss of profuse blood during menses or piles bleeding, & may be worm infection. You have to treat the root cause to improve her health, Giving Iron supplements cannot help her, as she seems to have poor absorption. Also, check her
Thyroid levels. I would strongly suggest Homoeopathy medicines for her. She is very young & her low HB as well as PCOS can be completely cured with Homoeopathy medicines. To know more & for any other concern you can call us or reach us online.