NAET
Several years ago, I found an approach to treating allergies that was remarkably effective for me. At the time, I had struggled with increasingly severe food allergies for many years, to the point where I dealt with siginifcant fatigue daily.
The technique "resets" our body's responses to the allergen, allowing our system to deal with it in a less reactive way. It can treat any allergy-like reaction, from traditional allergens such as foods and pollen to more atypical ones such as sunlight. Each allergen is typically treated separately.
It may not work for everyone, although it has worked remarkably well for myself and others I know who has tried it.
About the treatment: NAET
And to find local practitioners: NAET Practitioners