Hi, Welcome to Health care magic forum.
The age of arrest of growth is the 18 years, so you need not worry about her growth.
If you are very particular about the growth, of your daughter of 15 years of age, i advise you to consult an orthopedic surgeon.
She may need to have X rays of the ends of the long bones , to see if the growth tissues are active, naturally she will have them. He will prescribe medicines for accelerating the growth.
I usually prescribe to my patient with such condition,injection of anabolic
steroids periodically,
vitamins,
antioxidants, calcium, vitamin D, iron, and protein substitutes preferably complain.
Give her more of green leafy vegetables, pulses, sprouts, and protein rich foods to have good utilization of the drugs.
wishing for a quick and complete recovery. Thank you.