How to detect an allergic constitution

Testing for an allergic constitution typically involves the following methods:

1. Allergen testing: This includes various methods such as skin prick tests, scratch tests, and patch tests. Taking the skin prick test as an example, the doctor places a small drop of highly purified allergen solution on the patient's forearm, then gently pricks the skin with a testing needle to observe whether a reaction, such as redness, swelling, or rash, occurs at the prick site to determine the allergen.

2. Blood tests: Serum IgE testing is also a commonly used method. By measuring the level of specific IgE antibodies in the patient's blood, the allergen can be further identified.

3. Elimination method: By making changes to diet or lifestyle—such as temporarily avoiding certain foods or environmental factors—to observe whether symptoms improve, the allergen can be identified.

4. Oral food challenge test: Under a doctor's supervision, the patient gradually consumes increasing amounts of a suspected allergenic food while monitoring for any allergic reactions. This is a more direct method but must be conducted in a medical setting to manage the risk of severe allergic reactions.

If you have any concerns, please consult a relevant medical professional.