Dog itching is often associated with flea or other parasites. Scratching and biting on various parts of the body is one of the most common symptoms of food allergies.
Food allergy causes itching and skin problems
The itching is usually accompanied by sores on the skin caused by the dog's constant scratching. In particularly bad cases, the skin areas can become cracked and painful inflammation can result from entering viruses or bacteria. However, itchy rashes can also be triggered by other allergies or skin diseases, so that their appearance alone cannot give a clear indication of a feed allergy.
Other symptoms of food allergy
A food allergy is just as often expressed by gastrointestinal problems. Vomiting, diarrhea, flatulence or loss of appetite, which recur frequently, indicate chronic gastrointestinal irritation. Behind it can be allergic reactions to ingredients in the feed. However, the following also applies here: the symptoms can have many other causes in addition to a food allergy.
A detailed medical history by the veterinarian is necessary to find out what the problem is. The blood and organs are also examined in detail in order to rule out other diseases. Usually, the dog is then put on a special exclusion diet, in which he is only allowed to eat food with certain ingredients. If the symptoms improve during the diet, a food allergy is very likely.
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