Allergic Reaction Bumps On Dogs Head. You could try Benadryl in the dosage 1 mg per pound of body weight. Rarely the swelling in angioedema can affect the throat and make breathing difficult. The most common reason for skin rashes in dogs is allergies. My vet gave me Prednisone the last time it happened and told me if it happened again I could give him the Prednisone for the swelling.
Rarely the swelling in angioedema can affect the throat and make breathing difficult. A few flea bites on a dog that is allergic to flea saliva can trigger itching and scratching for weeks. This is usually from mosquito or other insect bites but it can also be a general allergic reaction to a plant or other substance that has irritated your dogs skin. Allergic reactions to bug bites or a medication can cause the skin to swell from 12 inch to 2 inches. Redness and hives may also be noted on the body and legs. A dog with allergic dermatitis will tend to scratch relentlessly and peek the skin which often reveals an ugly rash that eventually develops into an ugly wound.
The most common reason for skin rashes in dogs is allergies.
The visible reaction can be lumps bumps rashes and hives. This is certainly easier to see in your short-coat dogs see image below. Folliculitis means inflamed hair follicles and often occurs when your dog is experiencing another skin problem such as mange or an allergy as the hair follicles become infected by the underlying skin condition. Any part of a dog that has skin exposed is more susceptible to contact dermatitis. If you see a swollen face or snout this is a sign that your dog may be headed into anaphylactic shock. Fleas food allergies and atopicor environmentalallergies.