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Can You Have Delayed Allergic Reaction. Allergic reactions after insect stings may have a delayed onset differing from the usual immediate anaphylactic pattern. The symptoms associated with an allergic reaction are varied and range from hives urticaria fever itchiness sore. Atlanta Medical Institute can help ease your worries. Such reactions can be observed with a number of allergens and can be tricky to diagnose and treat because doctors usually assume allergies are related to recent exposures.
So yes you can have delayed responses. The symptoms of a delayed allergic reaction are usually progressive starting with itching then moving into hives swelling and intestinal distress. What are the Symptoms of delayed food allergy. If the exposure to the allergen continues such as during a spring pollen season allergic reactions may last for longer periods such as a few weeks to months. A delayed or delayed allergic reaction also called a delayed allergic hypersensitivity response is an allergic reaction that begins between 24 and 72 hours 1-3 days after exposure to an allergen rather than being an immediate reaction as it occurs usual way in typical allergic reactions. However it is possible to experience mild swelling and tenderness redness and itching that lasts for several days.
Food reactions are common causes of delayed hypersensitivity allergic reactions which occur eight hours or more after ingestion.
Can you have a delayed allergic reaction to a wasp sting. Even with adequate treatment some allergic reactions may take two to four weeks to go away. In some cases swelling of the airways and difficulty breathing rapid heart rate and a drop in blood pressure can also occur and can even be life threatening. For example when I eat wheat I dont notice any symptoms for about 24 hours. The allergic reactions may affect different tissues of the body but the more common symptoms of food allergy include. What are the Symptoms of delayed food allergy.