You can have a reaction to various foods, but it’s not always an allergy – the difference lies with your immune system.

While you may be aware of more common outdoor allergies, you may not know that plenty of things in your home could be causing ...

Most people with allergies have elevated levels of food-specific immunoglobulin IgE in their bloodstream. These are antibodies that bind to the allergen and then attach to mast cells in the skin.

But sometimes, your immune system aggressively attacks normal, harmless substances, such as food ... or skin. Delayed reactions, or allergic contact dermatitis, is the most common type of allergic ...