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Thousands of people with a severe dust mite allergy could benefit from a "life changing" new daily treatment.

The institute has published its recommendations for the tablet, made by ALK-Abello, which is an option to treat moderate-to-severe house dust mite allergic rhinitis.

First, Fassett removed the IL-31 gene from mice and exposed them to the house dust mite, a common, itchy allergen.

"As we expected, the dust mite didn't cause itching in the absence of IL-31, but we were surprised to see that inflammation went up."

Three tablets treat grass or ragweed allergies, and a fourth gained approval in 2017 for dust mite allergies.