Dogs which scratch more than usual likely have a skin disease. Fortunately, the majority of dog skin problems are easily cured after a quick trip to the vet.
Allergic dermatitis presents as a rash which the dog scratches at relentlessly. Corticosteroids can be prescribed to relieve the itch, but identifying and removing the allergen is ultimately the most effective treatment plan. Dogs can be allergic to food, grooming products, pollen, and insect bites.
Scratching that is concentrated on the toes and/or ears is likely a yeast infection. Symptoms are itchy, discolored, or irritated shin on the ears and paws, where conditions are best for the yeast to grow. The most common treatment is a prescription topical cream. Occasionally a medicated bath or oral drug may be prescribed.
Superficial bacterial folliculitis presents as sores, scabs, and bumps. The infection is easier to identify in shorthaired dogs. Longhaired dogs will most likely present with excessive shedding and scaly skin. It is common for superficial bacterial folliculitis to occur simultaneously with other skin problems.
A common bacterial infection found in puppies is impetigo. Blisters filled with pus will commonly break and crust over. The blisters are easy to see since they are on the hairless portion of the abdomen. Treatment by topical solution is simple.
Seborrhea causes dogs to develop greasy skin and scales. This is occasionally a genetic disease that the dog will have for life, but most often it is a sign of an underlying issue such as allergies or hormonal abnormalities. The underlying cause must be treated for symptoms to abate.
Ringworm, contrary to its name, is a fungus and not a worm. It causes circular lesions on a dog's paws, forelegs, ears, or head. Very effective anti-fungal treatments are available.
Excessive shedding and hair loss is called alopecia and is a symptom of another underlying problem. Nutritional deficiency, stress, or an underlying disease can cause thinning of the coat.
Mange is a striking condition, causing intense itching, sores, hair loss, and red skin. The kind of mange determines the treatment.
Fleas are a very common problem for dogs. Most infestations are minor and cause only itching, but an extreme infestation can cause anemia and excessive blood loss. Fleas can also carry other parasites such as tapeworms. Additionally, dogs can be allergic to fleas. Allergies to fleas will result in alopecia and/or allergic dermatitis.
Ticks are another common parasite. A dogs will rarely pick up enough to cause serious blood loss, but they do spread Lyme disease, a potentially serious bacterial infection. Vaccines for Lyme disease are available.
Acral lick granuloma is a skin condition caused by excessive and obsessive licking of one spot. The area is unable to heal and becomes painful, causing the dog to lick more. Acral lick granuloma is treated by either a foul tasting topical solution or a collar to discourage licking.
Hot spots are a common with dog skin problems. They are small areas of irritated, inflamed, and red skin. Treatment includes addressing the underlying cause.
I'm a canine health specialist who specializes in dog skin care.
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