Remove all carpets from bedrooms. Wear a dust mask if you have to clean or vacuum. Ask someone who is not allergic to bathe the pet once a week. Close heating air ducts in the bedroom if you have forced-air heating. Again, consider a HEPA air filter and vacuum.
Cockroaches Ask a nonallergic person to spray insecticide and put out roach traps.
Be diligent about keeping a tidy kitchen. Plug any cracks in floors or walls. Pollen Use air conditioning and keep windows closed when the pollen count is high. Schedule outdoor activities for early or late in the day when the pollen count is lowest, or after rain has cleaned the air. Again, consider a HEPA air filter and vacuum.