Aug 24, 2024 · Symptoms Allergy symptoms depend on what allergen is involved. The symptoms can affect the airways, sinuses and nasal passages, skin, and digestive system. Allergic reactions can …

Aug 24, 2024 · Allergy symptoms can range from mild to severe, even life-threatening. Find out what treatments and prevention tips can help.

Aug 13, 2024 · Overview Hay fever, also called allergic rhinitis, causes cold-like symptoms. These may include a runny nose, itchy eyes, congestion, sneezing and sinus pressure. But unlike a cold, hay …

Sep 5, 2025 · Family pet making you sneeze? Find out about diagnosis, treatment and handy household tips for relieving bothersome pet allergy symptoms.

Feb 28, 2024 · Seasonal allergy signs and symptoms can flare up when there's a lot of pollen in the air. These steps can help you reduce your exposure: Check your local TV or radio station, your local …

Apr 16, 2025 · Allergy symptoms aren't usually life-threatening, but a severe allergic reaction can lead to anaphylaxis. Even if you or your child has had only a mild anaphylactic reaction in the past, there's a …

Aug 11, 2025 · Mold allergy and asthma If you have a mold allergy and asthma, your asthma symptoms can be triggered by exposure to mold spores. In some people, exposure to certain molds can cause …

Sep 20, 2025 · Penicillin allergy is a reaction of the immune system to the antibiotic medicine penicillin. Penicillin is used to treat bacterial infections. Penicillin allergy may cause hives, rash and itching. A …

Feb 13, 2024 · You can tell the difference between a cold and a seasonal allergy by key symptoms and how regularly symptoms appear. Colds are caused by your immune system's response when you …

Apr 6, 2024 · An aspirin allergy or sensitivity, or a reaction to NSAIDs, can cause symptoms that range from mild to severe. Reactions occur within minutes to hours of taking the medication.