WASHINGTON — The first treatment for peanut allergies is about to hit the market, a big step toward better care for all kinds of food allergies — but still a long way from a cure.

The treatment is a specially prepared peanut powder swallowed daily in tiny amounts that are gradually increased over months. It trains children’s and teens’ bodies to better tolerate peanut so that an accidental bite is less likely to cause a serious reaction, or even kill in severe cases.

Palforzia users still must avoid peanuts just like they always have.