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Diagnostic test for hives
There is no specific diagnostic test for hives. The diagnosis of hives usually based on the symptoms and a physical examination of the person. A person with acute hives doesn’t require testing because the symptoms go away. Your physician can tell if you have hives by looking at your skin. Doctors perform tests for hives only when they suspect that an allergen is irritating the patient’s skin. This is mostly done in young children or adults who have a history of allergic reactions. If the doctor believes that the hives are not caused by allergies, further tests will be done. At times, doctors start diagnosis by asking you about your medical history. Your doctor can ask you to create a detailed diary of exposure to possible irritants. You should tell your doctor about all medications you take. If the cause of your hives isn't clear or if your symptoms recur often then your doctor can recommend an allergy skin test. At times, blood or skin tests are performed to confirm that whether it is an allergic reaction or hives. Tests that your doctor can recommend to diagnose hives are mentioned below.
Sometimes, the cause of the hives is easy to make out because they will occur as soon as the offending trigger is eaten or touched. However, in some cases, the patient requires medical testing to diagnose hives. The doctors will usually need to take a complete history of the patient and his/her family. The patient may require to keep a food diary if allergy is supposed to be the cause. A doctor can confirm the type of allergy. In some cases, the cause of the hives is not certain.
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