My husband is allergic to dogs, too. We got our B, Cooper, because he had less symptoms around basenjis than other dogs. However, he still feels that he occasionally reacts to Cooper.
Some things that work at our house:
-The Dyson Animal vacuum cleaner. It is awesome! Our B is very allergic to dust mites, so everyone in our family benefits from its incredible power. It will pull things out of your carpet and furniture that you never knew you had.
-Ask at your local pet store for allergen reducing shampoo. PetSmart carries at least 2 different brands. Also, keep a "waterless shampoo" or "grooming spray" on hand to wipe down the dog after exercise outdoors. Dogs are really great at bringing in outdoor allergens to us!
-Make sure you're feeding a high quality food, and supplement with fish oil capsules if your dog has dry skin. This should reduce shedding and dander.
-Febreeze has an allergen reducing spray that keeps dander from becoming airborne. Spray it on carpets and furniture after thorough vacuuming.
-Depending on your attachment to the dog and severity of allergies, consider making the bedroom a dog-free zone. Just sleeping in a "clean" area can help you deal with the dog better during the daytime. Also consider using an air purifier in your bedroom.
-Replace your furnace filter with a really good allergen filter. Filtrete makes one that we use. Replace it often!!!
Hope this helps!!!
Ruth