Why do dogs always chew their own legs?

Dogs like to bite everywhere because of their personality. However, if a dog likes to bite certain parts of its body, then we need to pay attention to it and check whether there is any problem with the dog.
I believe many people have seen dogs chewing their own legs, but why do dogs always chew their own legs? Let’s analyze the reasons.
Reason:
Allergies may be caused by mites, mold, dust, chemicals and other substances. Due to the complex causes, it is difficult to determine which substance you are allergic to. This is also a characteristic of allergic dermatitis.
Symptoms:
Severe itching, frequent scratching, and occasional biting of the affected area. There is hair loss in the area that is scratched repeatedly, the skin is scratched, or the skin becomes black and thickened. The sick dog keeps licking its fur, causing its fur to change color. Atopic dermatitis often turns into chronic dermatitis, and even if it appears to be improving, it will relapse in most cases.
Prevention and treatment:
Finding out the source of the allergy and trying to eradicate it is the fundamental solution. But it is difficult to identify a specific allergen, and it is even more unrealistic to eliminate all allergens. Therefore, drug relief treatment is generally used. The drugs used include antihistamines to relieve itching, steroids to suppress inflammation, anti-allergic drugs, etc. There are internal drugs and external drugs, which are used according to the affected area and symptoms.
If you find that your dog likes to bite its own legs and is accompanied by hair loss, it is probably caused by disease. Therefore, we should take our dogs to the hospital for examination as soon as possible and receive early treatment.
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