Souces: Allergies in Pets

Natural Library of Medicine: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5809771/

Sources: Schwarzmann Animal Medical Center: https://www.amcny.org/pet_health_library/allergies-in-dogs/

Mayo Clinic: Pet Allergy

https://www.mayoclinic.org/diseases-conditions/pet-allergy/symptoms-causes/syc-20352192