Allergy
An allergy is an overreaction of the immune system to a substance that is normally harmless. This substance, known as an allergen, can be found in a variety of environmental sources, such as pollen, dust, or animal dander, as well as in certain foods and medications.
The symptoms of allergies can vary depending on the type of allergen and the severity of the reaction, but may include sneezing, itching, runny nose, nasal congestion, coughing, hives, swelling, and difficulty breathing.
Diagnosis of allergies typically involves a physical exam and review of symptoms, as well as skin or blood tests to identify specific allergens that may be triggering the reaction.
Treatment for allergies typically involves avoiding the allergen when possible and taking medications to manage symptoms. Over-the-counter antihistamines, decongestants, and nasal sprays can help to alleviate symptoms, while prescription medications such as corticosteroids or allergy shots may be necessary for more severe allergies.
Prevention of allergies may involve taking steps to avoid exposure to known allergens, such as avoiding certain foods or using air purifiers to reduce exposure to environmental allergens.
It is important to seek medical attention if you experience severe or life-threatening symptoms of an allergic reaction, such as difficulty breathing, swelling of the face or throat, or loss of consciousness.
