Can the same allergen cause different symptoms in different people?

... allergic rhinitis. In some cases, exposure to cat allergens can also exacerbate asthma symptoms, leading to wheezing and difficulty breathing1 4 6. Some symptoms attributable to allergic diseases are mentioned in ancient sources. · All forms of hypersensitivity used to be classified as allergies, and all ... This release of chemicals leads to the symptoms associated with an allergic reaction. Symptoms of an IgE-mediated food allergy occur a few seconds or minutes ... ... symptoms (e.g. hayfever, allergic asthma, urticaria and some food allergy ... allergy cases and allergy diagnosis. Feb 21, 2025 ... Some common symptoms include: an itchy sensation inside the mouth, throat or ears; a raised itchy red rash (urticaria, or “hives”); swelling of ... Hay fever (allergic rhinitis), eczema, hives, asthma, and food allergy are some types of allergic diseases. Allergy symptoms can range from mild to a serious, ... For mild allergies, effective treatments are available to manage or treat allergy symptoms. ... Some allergens don't contain protein to begin with, but ... ... symptoms of hay fever which, while miserable, isn't that serious. However, in some cases, the allergic reactions to mold can be more severe and include. Asthma. Jan 31, 2025 ... Most people with COVID-19 have mild symptoms, but some people become severely ill. ... Signs and symptoms of a severe allergic reaction can ... Anaphylaxis has some of the same symptoms of mild allergic reactions, but the symptoms are more severe and occur in more than one system. Symptoms of ...