The only thing that works for me is;

Go to a Walgreens that has a pharmacy.

Ask the pharmacist for;

Walgreens
MAXIMUM STRENGTH WAL-PHED
SINUS & ALLERGY

Of course it has Psudoephedrine in it so you have to show an ID and sign for it. They will look at you like you are a drug user too but it works when nothing else will.

The link below shows what you are looking for. Sometimes the box is a different color. Do not get the one with a "PE" on the box. It's the formula they made when they stopped using Psudoephedrine and it does not work worth a dime.

Here is a link that might be useful: Walgreens MAXIMUM STRENGTH WAL-PHED SINUS & ALLERGY

Yes pseudophedrine works for me too, but I want to know what is causing it.

Cottonwood, Arizona Ash, and Fruitless Mulberry are what's putting out pollen right now, according to my allergy calender.

According to Weather Underground, Ash, Cedar, and Juniper are causing the extremely high pollen readings for the Phoenix area this week.