I have had allergies many years and here's what I would do.
A couple of tips that may help: If the dog spends time out of doors, it probably has lots of pollen in its fur. Find a volunteer to brush the dog if you can. Second: Find some local bee pollen and eat just a nugget or two.If you get a big reaction or really itchy throat, stop. Other wise slowly increase amount to 1/2 teaspoon. Lastly increase water intake which is a multi-level approach. If you drink a lot of water in a short amount of time, it will tend to go through you,make you pee a lot and help flush out pollen. Sipping a little every 5 or 10 minutes will hydrate you and it helps to keep you from peeing all the time. Try both of these methods through out the day. And a very effective detox from the ayurvedic tradition (ancient to present India ) is to sip hot water every 10 to 15 minutes throughout the day. This is by far the most difficult. Sourcing hot water on a schedule but really works and removes other toxins also. Best of health to you.