What should you know about oral mite anaphylaxis?

Mites can contaminate stored flour or other powdered foods, particularly when storage conditions allow them to multiply. A person who is sensitised may develop a rapid reaction after eating the food. Symptoms can involve the skin, stomach, throat, or lungs; wheezing, throat tightness, hoarseness, dizziness, or collapse are warning signs.

This reaction is different from ordinary dust-mite allergy symptoms. The trigger may not be obvious from taste or smell, so a suspected episode needs medical assessment and a careful history of the food, storage, and timing.

If anaphylaxis is suspected, use a prescribed adrenaline auto-injector immediately if available, call emergency services, and say that a severe allergic reaction is occurring. Lie down with legs raised if comfortable; sit up only if breathing is easier that way. Do not walk around or rely on an antihistamine alone.

After recovery, avoid the suspected food until an allergy clinician gives personalised advice. Store dry foods as directed, check for infestation or contamination, and keep any emergency medicines accessible according to your action plan.

Emergency care is needed for trouble breathing, wheezing, throat or tongue swelling, widespread hives with weakness, repeated vomiting, faintness, or sudden confusion after eating. Symptoms can return after seeming to improve, so medical observation is necessary even when the person feels better.

Ask whether the episode fits anaphylaxis, whether you need adrenaline devices and a written action plan, how to recognise hidden exposure, and whether allergy testing or specialist review is appropriate.