meri beti k ghutne bhut kaale hain jabki wo hmesha cover rehte hain phir bhi ghutne bhut kaale hain unko kaise saaf kru.

A. Hi Mom, It is normal in toddlers. Nothing to worry about that. Try some home remedies. Make a paste of lemon juice and baking soda mixing equal quantiites of both ingredients. These two ingredients have bleaching properties, making a great combinations to cure this problem of dark knees.