Help! I Think I Am Allergic to My Dog! (Vet Answered)

ℹ️Jack asks about their dog, Chewy (Havanese)
🗓️Asked on 5 February 2026
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This question has been answered by a vet

Dr. Paola Cuevas
Dr. Paola Cuevas MVZ

Veterinarian & Animal Behaviorist

With nearly two decades in veterinary medicine, Dr. Paola brings hands-on experience across multiple species. A graduate of the University of Guadalajara, she specializes in preventive care, animal welfare, and positive reinforcement training.

The Question

Dear Dr. Paola,

I think I am allergic to my Havanese dog Chewy. My nose runs, my eyes water and I itch all over. My condition has gotten worse since she started her menstrual period. Are you aware of anyone else who has had this problem with their Havanese dog? Or is there anything I can do?” – Jack

Quick Info about Chewy

Sex: Female
Neutered/Spayed: No
Breed: Havanese
Dr. Paola Cuevas
Dr. Paola replied on 5 February 2026

Hi Jack, your described allergy symptoms could be related to proteins in Chewy’s dander, saliva, or urine, which are common allergy triggers. While there isn’t definitive research directly linking a dog’s heat cycle to increased allergies, hormonal changes during this time may cause slight increases in skin oil production. More importantly, dogs often groom themselves more during their heat cycle, which can spread additional dander and allergens into the environment, potentially worsening your symptoms.

To manage this, focus on maintaining a clean living space and consult your doctor or an allergist to confirm the cause and discuss treatment options. Allergies can be frustrating, but with the right approach, you may be able to find relief while continuing to enjoy life with Chewy.

Disclaimer: The advice provided here is for informational purposes only and does not constitute a medical diagnosis. Always consult your local vet for emergencies.
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