Thanks for writing to us.
For a Vitamin D3
deficiency, she needs at least 60,000IU of supplementation every weeks for at least 6-8 weeks. She can get the appropriate medicine prescribed after consulting an orthopedician. Sun exposure will also help her.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Rakhi-Tayal