These allergens can be found both outdoors and indoors. When allergic rhinitis is caused by common outdoor allergens such as mold or trees, grass and weed pollen it is often referred to as seasonal allergies, or "hay fever." Allergic rhinitis may also be triggered by allergens that are in your house, such as animal dander (tiny skin flakes and saliva), indoor mold, or the droppings of cockroaches or house dust mites tiny creatures found in the home. Coughing caused by clear mucus running down the back of your throatĪnaphylaxis is a serious allergic reaction that can cause death.Children who have allergic rhinitis might have dark circles under their eyes, or use the palm of their hand to push their nose up as they try to stop the itching (called the "allergic salute").īut, unlike common cold symptoms, allergic rhinitis can last for more than 8-10 days and may include: Signs of allergic rhinitis are similar to signs of a common cold. It can happen in people who have allergies or asthma, and it may be caused by several normally harmless things called allergens. Most often it is caused by foods, insect stings and medicines. Anaphylactic signs (or symptoms) usually do not happen the first time you are near the allergen. That's because it can take some time for your body to build up an antibody to the allergen. Signs of anaphylaxis usually start 5 to 30 minutes of meeting the allergen, but sometimes symptoms can begin after 1 hour. An anaphylactic reaction can make it hard to breathe or cause you to pass out. That's why anaphylaxis is always an emergency. It is important to know when anaphylaxis is happening, how to treat it and how to stop it from happening again. Swollen throat or swollen areas of the body.A red rash, with welts, that usually is itchy.
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