Hello
welcome to health care magic
yes go for 
haemoglobin check up.boost her immunity with these simple home remedies:
 Green leafy vegetables like Spinach , Mint , Methi , Amranth etc.
  
Vitamin C . So give her lots of fresh fruits like Guava , Sweet lime , Oranges , Aavla etc
 raw freshly sprouted pulses . It can consumed with salads too.
 give her  Ragi ( Nachni ) , Soya bean flours . They can be mixed with wheat flour & chapatis can be made out of it.
 Rice flakes ( Poha ) as they are good source of Iron.
 Use gur instead of sugar . As gur is a good source of Iron.
Soak 2-3 dates in water in night & than in morning consume it with milk or with water.
Red meat is also good but it will also increase the weight
take care
mail me at payalrawatchauhan16@gmail.com
thanks