CHICAGO — A new strain of “super lice” has now spread to 25-states — including Illinois.

The strain of lice is resistant to over-the-counter treatments and have to be treated with prescription medications.

Comb-out treatments by specialists are another option but can cost hundreds of dollars.

Experts say head lice don’t carry disease.

An estimated 6-to-12 million cases occur each year in the U.S. among kids ages 3-to-11-years-old.

“Super lice” was first reported in the United States in 2000.