Your daughter might be having ecthyma.
It is an infectious skin disease caused by bacteria..streptococci.
There is tough crust, after removing that there would be bleeding.
Poor immunity, poor hygiene and poor nutrition might cause this type of infection.
Blood tests may be done to rule out anaemia
and immunocompromised conditions.
Strong oral antibiotics
with anti inflammatory drugs and application of antibiotic cream would improve the the disease.
Dettol bath is suggested to improve the hygiene.
Healthy food and immunobusters may be given to improve immunity.
However, consult dermatologist
for firm treatment.
I hope you got my answer.
Dr. Ilyas Patel MD