You may wish to follow a holistic approach in raising your puppy or kitten. This is a less intensive protocol where we seek to encourage natural immunity.
With the alternative vaccination protocols we use one-way vaccines (i.e. vaccines that contain one single antigen rather than multiple antigens), certain homeopathic medicines called nosodes, and titre testing. Vaccines are spread out over a longer time period and any reaction is closely monitored so as not to interfere with the maturing of the puppy's immune system.
For instance, if the puppy has a rash (which would be an immune reaction to grasses, pollens, insects, etc), vaccination is postponed until the rash is resolved.
See further discussion on the holistic approach to immunity under Resources, in the Library of articles:
Vaccination and Immunity
Allergy and Vaccinations
To Vaccinate or Not
Vaccinations and allergies have more to do with 'cooking' than we think