Would be to do EFT tapping regularly the rest of the day. "Even though I am exposed to dust now, I fully and completely love and accept myself." Tap, tap, tap.
The reason for the 25 hour wait period is because of the meridian cycle in the clock. The EFT tapping hits points on all the meridians, but you could look at the meridian cycle and even add more detail if necessary
either by hitting points specific to the meridian, or just by adding the words to the EFT affirmation--eg, "Even though I am exposed to dust now, my (applicable to the time) meridian fully accepts that dust, and I completely love and accept myself."
I have a funny feeling that some practitioners might not tell their patients that because probably a lot of people could eliminate their own allergies that way, without even seeing a practitioner. Also some practitioners are more strict adherents to the official NAET protocol.
The interesting thing about this is that Dr. Gott covered this at all.