If you're not using prevention, then you really need to vacuum daily (2-3x is ideal) and that includes furniture. Bedding (yours and theirs) should be washed a couple of times a week as does the dog.
Bathing your dog with a bit of apple cider vinegar helps, but I don't know how effective it is w/o other preventative care.
__________________  Heather Zeus  | Thalia  |