Thanks for your query.
Seems like your daughter hah developed fissured eczema
of the feet.
Such a problem is common in young children.
You should use a good moisturizer and Apply it atleast three to four times a day over the affected areas.
In addition, to overcome the acute episode your child might need to apply topical steroid
and antibiotics combination creams over the affected areas.
Hope it helps
Dr Geetika Paul