Stomach allergy test: what to know

Food Allergy can cause stomach pain, nausea, vomiting or diarrhoea, often with hives, swelling, wheeze or itching soon after a food. A skin prick test places small amounts of selected allergens on the skin; a blood test measures specific allergy antibodies. A positive result shows sensitisation, not necessarily that a food causes your symptoms, so the history matters. Tests for Allergic Rhinitis, Asthma, Allergic Conjunctivitis, Pet Allergy or House Dust Mite Allergy answer different questions.

Record what you ate, the amount, timing, symptoms and whether exercise or medicine was involved. Do not remove many foods or deliberately re-eat a suspected trigger without clinical advice. Tell the clinician about eczema, asthma, previous reactions and medicines, because some medicines can affect testing or treatment planning. A specialist may recommend a supervised food challenge when the diagnosis remains uncertain.

Seek emergency help for trouble breathing, throat or tongue swelling, faintness, widespread hives, repeated vomiting or rapidly worsening symptoms after a food. These can signal Anaphylaxis. Arrange routine assessment for repeated reactions, restricted eating, poor nutrition or symptoms that are not linked clearly to one food.

Ask whether your pattern suggests Food Allergy or another digestive problem, which allergens should be tested, and how to interpret a positive or negative result. Ask what to do if an exposure happens before the assessment is complete.