Eosinophils are a type of white blood cell that help the body fight off infections. The test involves a doctor drawing blood. An eosinophil count may be either too high or too low, which may indicate an underlying condition, or it may be in the normal range. Learn more about eosinophil count here.
Millions of people live with peanut allergy, for which there is currently no available treatment. Thanks to a new study, though, this may soon change.
People who experience lightheadedness feel dizzy or faint. This sensation is particularly common after standing up too quickly. Learn about the other possible causes and treatment options in this article.
The sinuses drain down the back of the throat, and issues such as allergies, infections, and colds can make the process irritating or painful. Some home remedies include nasal irrigation and steam therapy. Learn more here.
A person with a polyester allergy may experience irritation, redness, and other symptoms when their skin comes into direct contact with polyester. The best way to treat this allergy is to avoid all fabrics containing polyester. Learn more here.
Skin redness is often harmless, but can sometimes be a symptom of another condition. Possible causes of red skin include burns, infections, and allergic reactions. Learn more here.
Black mold is a type of fungus that tends to thrive in damp areas. Long-term exposure to black mold may cause symptoms, particularly in people with asthma, respiratory allergies, or a weakened immune system. Learn more here.
Cromolyn sodium is a widely available medication for preventing and treating nasal allergies, such as hay fever and pet or dust allergies. It comes as a nasal solution and works by preventing the release of histamines in the nose. Learn more here.
A person’s face can become swollen in response to injuries, allergic reactions, infections, and other medical conditions. Face swelling that occurs alongside other symptoms, such as breathing difficulties or rapid heartbeat, may indicate anaphylaxis, which requires immediate medical assistance. Learn more here.
Certain plant extracts and natural products may have antihistamine properties, meaning they can reduce allergy symptoms. Learn about five natural antihistamines, and what the evidence says here.