Some dogs may be allergic to certain proteins (beef, dairy, chicken, etc.) and/or grains (wheat, corn, rice, etc.).ĭogs suffering from allergic dermatitis are affected all over their bodies, but most commonly on the armpits, ears, feet, groin, legs, muzzle, and around the eyes and anus. While dogs most frequently suffer from allergies due to environmental triggers, allergic reactions to food are possible. Non-seasonal allergies aren’t exclusive to weather that supports plant growth and can be caused by dust, molds, environmental materials (wool, etc.), chemicals (air-fresheners, cleaning products, etc.), and other factors. Blooming plants and flowers, grasses, weeds, and trees are common contributors to seasonal allergies. Seasonal allergies tend to be most prevalent during spring, summer, and fall, but regions that undergo frequently warm and/or humid weather can have a year-round allergy season. How Can I Tell the Difference Between Allergies and Bug Bites/Stings?ĭogs affected by allergic dermatitis may have allergies related to seasonal, non-seasonal, or food-related causes. Parasitic dermatitis, on the other hand, is associated with insect bites or stings or contact with their secretions (feces, saliva, etc.).Īs both allergic and parasitic dermatitis can have similarities in the clinical signs they produce, it’s crucial that you schedule a consultation and physical examination with your veterinarian so a full assessment can be performed, appropriate diagnostic testing is pursued, and the most appropriate treatment is prescribed. Allergic dermatitis can be caused by seasonal allergies, non-seasonal allergies, food allergies, etc. Two of the most common types of dermatitis are allergic and parasitic. Inflammation of the skin is medically referred to as dermatitis, with derma- referring to skin and -itis meaning “inflammation of.” This will often cause intense scratching in the dog. There are, of course, a variety of reasons why our beloved canines chew, lick, and scratch themselves. These lesions also cause itchiness.Itching (pruritus) is one of the most common reasons dogs go to see the veterinarian. In extreme cases, fluid-filled blisters (bullae and vesicles) may form 48 to 72 hours after a flea has fed. ![]() However, doing so often leads to secondary infections. It can be difficult to avoid scratching the itchy lesions. Children typically experience more intense reactions than adults. ![]() The severity of the irritation peaks within 12 to 24 hours. They cause the majority of complaints in health clinics. Papules are extremely itchy, especially at night. The most common delayed reaction is a solid elevation of skin, known as papule. Delayed Reactions Itch PapulesĢ4 hours after the bite, a new type of lesion arises, and skin in the area begins itching. In fact, since fleas are small and hard to see, people may not be aware of being bitten until a day later. The wheals aren’t too irritating and they fade away quickly. However, these early lesions don’t usually bother people. Within 5 to 30 minutes of a flea biting, skin at the location will rise. Immediate Reactions don’t Itch (much) Wheals However, sometimes there’s no immediate reaction. Most people experience both an immediate and a delayed reaction. The reaction depends upon a person’s individual response, as well as their level of sensitization from previous exposure.
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