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©2013 UpToDate ® Print Email Causes and symptoms of common allergies Type of allergy Caused by Symptoms Seasonal allergies (also called hay fever) Pollen from trees, grasses, or weeds Stuffy nose, runny nose, or sneezing a lot Itchy or red eyes, sore throat, or itching of the throat or ears Waking up at night or trouble sleeping, which can lead to feeling tired during the day Asthma symptoms (wheezing or noisy breathing, coughing, a tight feeling in the chest, and shortness of breath) Mold spores that grow when the weather is humid, wet, or damp Indoor allergies Mold spores Animals, such as cats and dogs Insects, such as dust mites and cockroaches Insect allergies Stings from honeybees, yellow jackets, hornets and wasps, fire ants Red, hot, skin especially on your face (flushing) Red, raised patches of skin that are very itchy (hives) Swelling of the face, eyelids, mouth, tongue, hands, and feet (angioedema) Asthma symptoms (wheezing or noisy breathing, coughing, a tight feeling in the chest, and shortness of breath) Nausea and vomiting Feeling lightheaded or like you might pass out Food allergies Milk and foods that contain milk such as ice cream or butter (called dairy foods); eggs, wheat, soy, peanuts, tree nuts, (such as almonds or cashews); fish, shellfish (such as shrimp or oysters) Medicine allergies Penicillin and related medicines Latex allergy Gloves and other medical supplies that contain latex; condoms, balloons