How to Diagnose Hives

Hives are itchy bumps caused by allergens or irritants. They are different from blisters in that they are not liquid filled. Hives can appear anywhere on your body. They generally disappear within 24 hours and they won't leave scars when they go away. Your doctor can diagnose your condition if you're not sure it's hives.

Instructions

1. Identify the cause of the hives to help prevent future outbreaks. Start with external sources of irritants, such as new soaps or cosmetics. Take a close look at new products you are using, or new things you may have just finished using.

2. Keep a record of foods and medicines ingested. Allergies can come on at any age, so even foods that you used to eat can cause allergic reactions. If you have hives more than once, keep track of what you are putting into your body. This record can help your physician diagnose the cause of your hives.

3. Make a list of any family members who have allergies or sensitivities. Write down what they are allergic to and what their reactions are. Also tell your physician of any conditions you may have. Certain conditions are associated with skin rashes and hives.

4. Prepare for a blood or skin test. If your physician believes he needs multiple tests to determine what's wrong, he may order a series of skin tests. These tests can show what exactly your body is allergic or sensitive to. Your physician can help you determine what you should avoid.

5. Reduce stress to prevent nonallergic reactions from occurring. Keep track of what is going on in your life when the hives appear. You may find that stress is a major contributor to your outbreaks.