Question: Is there currently any way to treat food allergies?
Answer: So the principle of treating food allergy are to accurately identify what you're allergic to and then to vigilantly avoid it.
The question begs the answer, "Is there something we can do to turn off food allergies?" And the answer is no. We don't have any ability to render the patient non-allergic. All we can really do is help them to diagnose the allergen and recommend avoidance.
There are new therapies on the horizon, however, such as anti-IgE antibodies. Some of these have been studied in clinical trials and further studies are ongoing. But at this time the answer is identification and avoidance.