I haven't used it for allergies, but several friends have had lots of success clearing their allergies with TAT. They've had the experience of having to closely watch *everything* their child ate, where they were outside, no pets, etc. to having no allergies at all.
I've heard
TAT (Tapas Acupressure Technique) described as CTL-ALT-DEL for yourself!
I have used TAT to clear old issues, and can personally vouch for its effectiveness for that.
peace -