Search Results 1-10 of 24810 for allergy

  1. Allergies - Symptoms and causes - Mayo Clinic

    Sometimes, allergies can trigger a life-threatening reaction known as anaphylaxis. Hay fever, also called allergic rhinitis, can cause: Sneezing. Itching of the ...

  2. Pet allergy - Symptoms & causes - Mayo Clinic

    Pet allergy is an allergic reaction to proteins found in an animal's skin cells, saliva or urine. Signs of pet allergy include those common to hay fever, ...

  3. Food allergy - Symptoms and causes - Mayo Clinic

    For people with food allergies, symptoms can range from annoying to life-threatening. Learn about diagnosis and treatment of this common immune reaction.

  4. Anaphylaxis - Symptoms & causes - Mayo Clinic

    These chemicals are what cause the symptoms of an allergic reaction. Allergy symptoms usually aren't life-threatening, but a severe reaction can lead to ...

  5. Mold allergy - Symptoms & causes - Mayo Clinic

    Coughing, sneezing and itchy eyes often accompany this common allergy. Find out how to treat this condition and help keep it under control.

  6. Allergy shots - Mayo Clinic

    Each allergy shot contains a tiny amount of the substance or substances that trigger allergic reactions. These substances are called allergens. Allergy shots ...

  7. Egg allergy - Symptoms & causes - Mayo Clinic

    Skin inflammation or hives — the most common egg allergy reaction; Nasal congestion, runny nose and sneezing (allergic rhinitis); Digestive symptoms, such as ...

  8. Mayo Clinic Q and A: Is it allergies or a sinus infection?

    Allergies and sinus infections often are mistaken for one another. But they are two separate conditions, with some different symptoms.

  9. Mayo Clinic Q and A: Allergies or a virus? How to tell the difference

    But in the last few weeks I have been experiencing congestion, runny nose and a persistent cough. How can I determine whether this is a cold, allergies or ...

  10. Drug allergy - Symptoms and causes - Mayo Clinic

    Learn which drugs are more likely to cause an allergic reaction, what symptoms look like and what treatments can calm such a reaction.