Allergic reaction is a symptom of overloaded/burdened liver ... sometimes one flush makes it worse by moving some stones into worst position ... then you do another flush, and allergies are gone. You don't have to wait 2 weeks, just repeat the flush the very next day, and that will take allergies away.
It is not smart to wait ... the longer you wait ... the more you are torturing your liver.
Make also sure that your diet is perfect - no refined foods.
Drink also planty of water! Try also coffee enema!