Adopt-a-Pet.com sets the record straight.
Therefore being "allergic to dogs" is actually a very general term. Before you consider adopting a dog, find out if your allergy is to pet dander, saliva or urine. If you're allergic to saliva and your doctor approves of you adding a canine family member, you can ask your local rescue groups to keep an eye out for an adult dog that doesn't lick people. You need a mature pooch, because you'll be able to tell exactly what the dog's licking behavior is—unlike with a puppy whose behavior has yet to become permanent. Make sure to wash your hands after playing with or petting your dog, especially if your hands come in contact with toys that have been in your dog's mouth.
While no dog is 100 percent nonallergenic, if you're allergic to dander, you may be able to tolerate a so-called "low-dander" dog. Several breeds are known as low-dander dogs. These types of dogs have coats that are more like hair than fur, and they tend not to shed much. They also usually require a lot of brushing and grooming, due to their constantly growing hair.
Get Adopt-a-Pet.com's list of low-dander breeds