Re: What are allergies.

 That is an interesting theory.

There is more evidence to prove this.  For example, why do children born with allergies/asthma tend to outgrow these conditions around the age of 5?  Simple, the adrenals have matured enough by that time to allow sufficient production of epinephrine and corticosteroids.  In addition stress, steroids and stimulants are all known to aggravate and even precipitate these attacks.  Why?  Because all of these suppress adrenal gland function.

In my case I have normal plasma cortisol yet massively low
saliva cortisol...I wonder if this is due to cortisol being used up to stave off the allergic reaction.

I don't trust saliva testing at all.

Other than your adrenal protocol....any other suggestions.

Not really. The primary focus should be on nutrition for the adrenals, adrenal supporting (adaptogenic) herbs, and avoiding stress, stimulants and steroids.  I have seen numerous people get rid of their allergies by building up their adrenals, and it does not take long to see results.

In a pinch quercetin or coleus forskohlii can be used to stop an allergic response, but this should only be done in extreme cases since this will dry up the sinuses.  Drying up the sinuses contributes to sinus infections since bacteria and fungi are not being flushed out.