Hay Fever in Dogs: Understanding Physiological and Psychological Symptoms
Hay fever, also known as allergic rhinitis, is a common condition in humans, but it can also affect our canine companions. Hay fever in dogs, like in humans, is caused by an allergic reaction to airborne substances such as pollen, dust mites, and mould spores. While it primarily affects the respiratory system, it can also have significant impacts on a dog's overall well-being, including psychological symptoms. This article delves into the physiological and psychological manifestations of hay fever in dogs supported by peer-reviewed sources, highlighting the importance of recognizing and managing these symptoms.
Physiological Symptoms
Respiratory Symptoms
The primary physiological symptoms of hay fever in dogs are respiratory. Dogs with hay fever may exhibit sneezing, coughing, and nasal discharge. These symptoms occur because the allergens trigger an inflammatory response in the nasal passages and upper respiratory tract.
Sneezing and Nasal Discharge: Sneezing is a common response to irritants in the nasal passages. Nasal discharge, which can be clear or mucoid, often accompanies sneezing.
Coughing: Coughing occurs when the allergens irritate the throat and airways, causing inflammation and excess mucus production.
Dermatological Symptoms
Hay fever can also present with dermatological symptoms, as dogs often experience skin reactions to airborne allergens. These symptoms include itching, redness, and hot spots.
Itching and Redness: Dogs with hay fever may scratch or bite at their skin excessively due to the histamine release triggered by allergens. This can lead to redness and inflammation.
Hot Spots: Persistent scratching can cause hot spots, which are localized areas of skin irritation and infection.
Ocular Symptoms
The eyes are another common site affected by hay fever in dogs. Allergens can cause conjunctivitis, leading to watery, red, and itchy eyes.
Conjunctivitis: Inflammation of the conjunctiva, the mucous membrane covering the eye, results in symptoms such as redness, swelling, and discharge from the eyes.
Ocular Ear Infections
Chronic ear infections, or otitis externa, are frequently associated with atopic dermatitis in dogs. The inflammation and itching can lead to excessive scratching and head shaking, potentially causing further damage to the ear canal and tympanic membrane (Paterson, 2016).
Psychological Symptoms
Anxiety and Stress
The discomfort and irritation caused by hay fever can lead to increased anxiety and stress in dogs. The constant itching, sneezing, and other symptoms can make dogs restless and irritable. Dogs may become more agitated or exhibit changes in behaviour, such as increased vocalization, restlessness, or withdrawal.
Depression
Chronic hay fever symptoms can lead to a decrease in a dog's overall quality of life, contributing to symptoms of depression. Dogs may lose interest in activities they once enjoyed, become lethargic, or have changes in appetite. Dogs suffering from hay fever may show less enthusiasm for play or exercise, indicating a drop in their general well-being.
Sleep Disturbances
The itching and discomfort caused by hay fever can interfere with a dog's sleep patterns. Sleep disturbances can further exacerbate anxiety and stress, creating a cycle of discomfort and psychological distress. Dogs may have difficulty settling down at night, leading to fragmented sleep and daytime fatigue.
Management and Treatment
Avoidance of Allergens
One of the most effective ways to manage hay fever in dogs is to minimize exposure to allergens. This can be achieved through various strategies:
Regular Cleaning: Keeping the living environment clean by regularly vacuuming and dusting can reduce the presence of allergens such as pollen and dust mites.
Air Filters: Using air purifiers with HEPA filters can help remove airborne allergens from the home.
Medications
Several medications can help alleviate the symptoms of hay fever in dogs. These include antihistamines, corticosteroids, and immunotherapy.
Antihistamines: These can help reduce itching and other allergic reactions by blocking histamine receptors. While many Antihistamines designed for human use are perfectly safe for dogs, please seek a vets advice in terms of suitability and dosage.
Corticosteroids: These are potent vet prescribed anti-inflammatory drugs that can quickly relieve severe symptoms but should be used with caution due to potential side effects.
Immunotherapy: Allergen-specific immunotherapy (ASIT) involves gradually desensitizing the dog's immune system to the specific allergens causing the reaction.
Behavioural Support
Addressing the psychological symptoms of hay fever is also crucial. Providing a comfortable and stress-free environment can help alleviate anxiety and depression.
Environmental Enrichment: Ensuring the dog has access to engaging activities and comforting spaces can reduce stress.
Routine and Consistency: Maintaining a consistent daily routine can help dogs feel more secure and less anxious.
Simply Put
Hay fever in dogs is a multifaceted condition that affects both the body and mind. Recognizing the physiological and psychological symptoms is essential for providing comprehensive care. By combining environmental management, medical treatment, and behavioural support, owners can significantly improve their dogs' quality of life during the hay fever season.
References
Hill, P. B., Moriello, K. A., DeBoer, D. J. (2006). "Allergic skin disease in the dog and cat." Elsevier Saunders.
Scott, D. W., Miller, W. H., Griffin, C. E. (2001). "Muller and Kirk's Small Animal Dermatology." 6th edition.
Saridomichelakis, M. N., Koutinas, A. F. (2014). "Allergy and atopy in dogs and cats." Veterinary Clinics: Small Animal Practice.
Favrot, C., Steffan, J., Seewald, W., Picco, F. (2010). "A prospective study on the clinical features of chronic canine atopic dermatitis and its diagnosis." Veterinary Dermatology.
Hargis, A. M., Mundell, A. C. (1992). "Conjunctivitis." Veterinary Clinics of North America: Small Animal Practice.
Overall, K. L. (2013). "Manual of Clinical Behavioral Medicine for Dogs and Cats." Elsevier Mosby.
Landsberg, G., Hunthausen, W., Ackerman, L. (2012). "Behavior Problems of the Dog and Cat." 3rd edition.
Hart, B. L., Hart, L. A., Thigpen, A. P., Tran, A., Bain, M. J. (2021). "Canine behavior problems reported by owners of small and large dogs: Behavioral, veterinary, and demographic associations." Journal of Veterinary Behavior.
Olivry, T., DeBoer, D. J., Favrot, C., Jackson, H. A., Mueller, R. S., Nuttall, T., Prelaud, P. (2010). "Treatment of canine atopic dermatitis: 2010 clinical practice guidelines from the International Task Force on Canine Atopic Dermatitis." Veterinary Dermatology.
Foster, A. P., Lloyd, D. H. (2001). "Use of corticosteroids in the management of skin diseases." In Practice.
Paterson, S. (2016). Topical ear treatment in dogs – an update. In Practice, 38(10), 489-496.
Mueller, R. S., Janda, J., Jensen-Jarolim, E., Rhyner, C., Marti, E. (2016). "Allergen-specific immunotherapy in people, dogs, cats and horses – differences, similarities and research needs." Allergy.
Overall, K. L. (2013). "Manual of Clinical Behavioral Medicine for Dogs and Cats." Elsevier Mosby.
By understanding and addressing the comprehensive symptoms of hay fever in dogs, owners can better support their furry friends through allergy seasons, ensuring both physical comfort and mental well-being.
