#AskTheExpert there is some kind of allergy on my daughter's head.plz suggest

A. Cradle cap is common, mostly harmless, and should go away eventually. It's most common in babies up to 3 months old, but it can last up to a year or longer. Most cases of cradle cap go away by a child's first birthday, and cases continue to drastically decrease as a child approaches 4 years of age.